Program

Case 1: Infection Moderator: Lawrence G. Lenke, MD
13:00 - 13:04	Case 1: Infection - Senior Presentation Ajoy Prasad Shetty Tonse, MS Orth
13:04 - 13:08	Case 1: Infection - Junior Presentation Javier Pizones, MD, PhD
13:08 - 13:18	Discussion
Case 2: Congenital Moderator: Reuben CC Soh, MBBS, FRCS
13:18 - 13:22	Case 2: Congenital - Senior Presentation Daniel J. Sucato, MD
13:22 - 13:26	Case 2: Congenital - Junior Presentation Brice Ilharreborde, MD, PhD
13:26 - 13:36	Discussion
Case 3: Osteoporosis Moderator: Reuben CC Soh, MBBS, FRCS
13:36 - 13:40	Case 3: Osteoporosis - Senior Presentation Ahmet Alanay, MD
13:40 - 13:44	Case 3: Osteoporosis - Junior Presentation Dong-Gune Chang, MD, PhD
13:44 - 13:54	Discussion
Case 4: OI Moderator: Lawrence G. Lenke, MD
13:54 - 13:58	Case 4: OI - Senior Presentation Suken A. Shah, MD
13:58 - 14:02	Case 4: OI - Junior Presentation Michelle C. Welborn
14:02 - 14:12	Discussion
14:12 - 14:15	Wrap-Up

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Hibbs Society 2 - My Most Challenging Cases of Pediatric Spine Deformity

Tuesday

October 6, 2026

Case 1: VBT Moderator: Jianguo Terry Zhang, MD
14:15 - 14:19	Case 1: VBT - Senior Presentation Amer F. Samdani, MD
14:19 - 14:23	Case 1: VBT - Junior Presentation Jason Pui Yin Cheung, MBBS, MMedSc, MS, MD
14:23 - 14:32	Discussion
Case 2: Neuromuscular Moderator: Jianguo Terry Zhang, MD
14:32 - 14:36	Case 2: Neuromuscular - Senior Presentation Stefan Parent, MD
14:36 - 14:40	Case 2: Neuromuscular - Junior Presentation Joshua M. Pahys, MD
14:40 - 14:49	Discussion
Case 3: Syndrome Scoliosis Moderator: Sebastien Pesenti, MD, PhD
14:49 - 14:53	Case 3: Syndrome Scoliosis - Senior Presentation Michael G. Vitale, MD, MPH
14:53 - 14:57	Case 3: Syndrome Scoliosis - Junior Presentation Caglar Yilgor, MD
14:57 - 15:06	Discussion
Case 4: Early Onset Scoliosis Moderator: Sebastien Pesenti, MD, PhD
15:06 - 15:10	Case 4: Early Onset Scoliosis - Senior Presentation Jean Albert Ouellet, MD, FRCS(C)
15:10 - 15:14	Case 4: Early Onset Scoliosis - Junior Presentation Steven W. Hwang, MD
15:14 - 15:23	Discussion
15:23 - 15:25	Wrap-Up

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Hibbs Society 3 - My Most Challenging Cases of Adult Spine Deformity

Tuesday

October 6, 2026

Case 1: Biomarker Moderator: Steven D. Glassman, MD
15:45 - 15:49	Case 1: Biomarker - Senior Presentation Ferran Pellise, MD, PhD
15:49: - 15:53	Case 1: Biomarker - Junior Presentation Michael P. Kelly, MD
15:53 - 16:03	Discussion
Case 2: Proximal Junctional Kyphosis Moderator: Steven D. Glassman, MD
16:03 - 16:07	Case 2: Proximal Junctional Kyphosis - Senior Presentation Praveen V. Mummaneni, MD
16:07 - 16:11	Case 2: Proximal Junctional Kyphosis - Junior Presentation Peter G. Passias, MD
16:11 - 16:21	Discussion
Case 3: Cervical Moderator: Nan Wu, MD
16:21 - 16:25	Case 3: Cervical - Senior Presentation Khaled M. Kebaish, MD
16:25 - 16:29	Case 3: Cervical - Junior Presentation Lee A. Tan, MD
16:29 - 16:39	Discussion
Case 4: Adult Scoliosis with a Double Curve Moderator: Nan Wu, MD
16:39 - 16:43	Case 4: Adult Scoliosis with a Double Curve - Senior Presentation Munish C. Gupta, MD, MBA
16:43 - 16:47	Case 4: Adult Scoliosis with a Double Curve - Junior Presentation Jeffrey Gum, MD
16:47 - 16:57	Discussion
16:57 - 17:00	Wrap-Up

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Pre-Meeting Course: From First Case to Last Case: A Career Lifecycle in Deformity Surgery

Wednesday

October 7, 2026

Moderators

Eric O. Klineberg, MD & Megan Johnson, MD

08:00 - 08:34	Pre-Meeting Course 1 - Early Career: Identity, Growth, and Reality: Years 0-5 in Practice
08:00 - 08:08	The Growth Mindset in Spine Surgery Megan Johnson, MD
08:08 - 08:16	From Fellowship to Real Practice: The First Plateau Caglar Yilgor, MD
08:16 - 08:24	Mistakes Along the Way (That No One Warned You About) Nicholas D. Fletcher, MD
08:24 - 08:34	Discussion
08:34 - 09:16	Pre-Meeting Course 2 - A Marathon and Not a Sprint: The Spine Surgeon's Toolkit for Longevity
08:34 - 08:42	The Spine Surgeon as an Athlete: How to Keep Yourself Healthy and in the Game for the Long Haul Suken A. Shah, MD
08:42 - 08:50	Prehab and Post Game Recovery: How to Prepare for Big Days and Recover from Big Cases or Devastating Complications Todd J. Albert, MD
08:50 - 08:58	Group Effort: How Building a Team Around You from Extenders to Co-Surgeons Can Help Extend Your Career Rajiv K. Sethi, MD, PhD
08:58 - 09:06	Technical Assistance: How Enabling Technologies and Advanced Robotics Will Help Extend Our Careers and Not Replace Us Aaron Buckland, MBBS, FRACS
09:06 - 09:16	Discussion
09:16 - 09:50	Pre-Meeting Course 3 - Mid-Career:Plateaus, Deliberate Practice, and Burnout
09:16 - 09:24	The Intermediate Plateau: When You're "Good" but Not Getting Better Javier Pizones, MD, PhD
09:24 - 09:32	Deliberate Practice for the Experienced Surgeon Christopher P. Ames, MD
09:32 - 09:40	When Surgery Gets Hard Michael G. Vitale, MD, MPH
09:40 - 09:50	Discussion
09:50 - 10:15	Break*
10:15 - 11:15	Pre-Meeting Course 4 - Coaching, Leadership, and Mentorship
10:15 - 10:45	Coaching Approaches for Leading Self and Others: Implications for Career Engagement and Continued Personal Growth Sean O'Connor, PhD, MappSC Couch Psych. BSc Psych.
10:45 - 11:15	Panel Discussion Todd J. Albert, MD; Haemish A. Crawford, FRCS; Sean O'Connor, PhD, MappSC Coach Psych. BSc Psych.; Brian Hsu, MD; Serena S. Hu, MD
11:15 - 12:00	Pre-Meeting Course 5 - Later Career: Judgment, Leadership, and Exit
11:15 - 11:23	Judgment Over Technique Juan S. Uribe, MD
11:23 - 11:31	Practice Management as a Late-Career Strategy Peter O. Newton, MD
11:31 - 11:39	When Is It Time to Quit Operating? David W. Polly Jr., MD
11:39 - 11:47	Assessment Skills and Creating a Meaningful Exit Kenneth MC Cheung, MD, MBBS, FRCS
11:47 - 11:57	Discussion
11:57 - 12:00	Closing Comments

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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LTS 1: The Patient Transition from Pediatric to Adulthood: A Case-Based Panel Discussion

Wednesday

October 7, 2026

Moderators

Ali Baaj, MD & Burt Yaszay, MD

Panel 1: Young Adult with Untreated AIS
12:17 - 12:19	Case 1: M/F Ages 20-30 with Main Th Scoliosis Ali Baaj, MD
12:19 - 12:21	Case 2: M/F Ages 17 with 40 Degree T/L Scoliosis Ali Baaj, MD
12:21 - 12:35	Panel Discussion Patrick J. Cahill, MD; Marinus de Kleuver, MD, PhD; Michael A. Galgano, MD; Amit Jain, MD, MBA; Heiko Koller, MD; Kota Watanabe, MD, PhD
12:35 - 12:45	Discussion
Panel 2: Understanding the Risk of Degenerative Arthritis
12:47 - 12:49	Case 1: Treated AIS Long Fusion to L3 (wedged 3/4 disc) Burt Yaszay, MD
12:49 - 12:51	Case 2: Thoracolumbar tether Burt Yaszay, MD
12:51 - 13:05	Panel Discussion Ahmet Alanay, MD; Jennifer M. Bauer, MD, MS; Kenny YH. Kwan, BMBCh(Oxon), FRCSEd; Amer F. Samdani, MD; Michael Selby, MD
13:05 - 13:15	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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LTS 2: Sagittal Plane: Development and Planning Across the Ages

Wednesday

October 7, 2026

Moderators

Kariman Abelin Genevois, MD & Michael P. Kelly, MD

12:15 -12:25	Development of the Sagittal Plane Sebastien Pesenti, MD, PhD
12:25 - 12:35	Assessment of Normal Standing Alignment in Adults Jeffrey M. Hills, MD
12:35 - 12:45	Discussion
12:45 - 12:55	Planning Realignment in Adolescent Idiopathic Scoliosis Brice Ilharreborde, MD, PhD
12:55 - 13:05	Planning Realignment in Adult Spinal Deformity Camilo A. Molina, MD
13:05 - 13:15	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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LTS3: Treating Complex Curves Around the Globe

Wednesday

October 7, 2026

Moderators

Cristina Sacramento Dominguez, MD & John S. Vorhies, MD

Session 1: Large-Magnitude Curves in Adolescents
12:15 - 12:20	Patient Population and Pre-Operative Optimization Strategies Kwadwo Poku Yankey, MD
12:20 - 12:25	Preoperative and Intraoperative Resources for Severe Deformity Nan Wu, MD
12:25 - 12:27	Moderated Q&A
12:27 - 12:29	Case Presentation Kwadwo Poku Yankey, MD
12:29 - 12:35	Discussion
Session 2: Early and Late Presentation in Adult Spinal Deformity
12:35 - 12:40	Late Presentation in ASD: Aging, Metabolic Health, Inflammatory Modulation and Tissue Optimization Emmanuelle Ferrero, MD, PhD
12:40 - 12:45	Early Presentation in ASD: When are MIS Techniques an Appropriate Strategy? Jianguo Terry Zhang, MD
12:45 - 12:47	Moderated Q&A
12:47 - 12:49	Case Presentation Emmanuelle Ferrero, MD PhD
12:49 - 12:55	Discussion
Session 3: Early-Onset Syndromic and Neuromuscular Deformity
12:55 - 13:00	How Does Implant Availability Affect My Transition Point from Non-Operative to Operative Care? Andre Luis F. Andujar, MD
13:00 - 13:05	How I Design a Growth Friendly Surgical Strategy Kristopher M. Lundine, MD
13:05 - 13:07	Moderated Q&A
13:07 - 13:09	Case Presentation Kristopher Lundine, MD
13:09 - 13:15	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 1: Adult Spinal Deformity I: Optimizing Alignment, Why It Matters

Wednesday

October 7, 2026

Moderators

Alan H. Daniels, MD & Bassel G. Diebo, MD

13:30 - 13:35	Introduction
13:35 - 13:39	Paper #1: The Role of L5–S1 in Determining Lumbar Shape: Segmental Determinants of Normal L1PA Jeffrey M. Hills, MD; Alexander T. Yahanda, MS; Tyler K. Williamson, MD, MS, BS; JeanCharles Le Huec, MD, PhD; Camilo A. Molina, MD; Brandon B. Carlson, MD; Zeeshan M. Sardar, MD; Hee-Kit Wong, MD, PhD; Kazuhiro Hasegawa, MD, PhD; Lawrence G. Lenke, MD; Michael P. Kelly, MD
13:39 - 13:43	Paper #2: The Sacro-acetabular Angle: A Morphologic Property That Helps Predict Positional Spinopelvic Parameters Chien Yew Kow, MD; Farbod Moghaddam, BS; Timothy Lasswell, MD; Taryn Ludwig, MD, PhD; May Choi, MD; Michael P. Kelly, MD; Fred H. Nicholls, MD
13:43 - 13:47	Paper #3: Vertebral-Pelvic Angle-Based Classification Identifies Degenerative Sagittal Alignment Patterns Jun Ouchida, MD; Sadayuki Ito, MD; Naoki Segi, MD; Hiroaki Nakashima, MD, PhD; Shiro Imagama, MD, PhD
13:47 - 13:56	Discussion
13:56 - 14:00	Paper #4: Association of Kyphotic and Lordotic Apices and the Thoracolumbar Inflection Point with Regional and Global Sagittal Alignment in 410 Asymptomatic Adults Fred H. Nicholls, MD; Christopher J. Nielsen, MD; Fatemeh Alavi, PhD; Stephen J. Lewis, MD, FRCS(C)
14:00 - 14:04	Paper #5: Strategic Adjustment of Segmental Lumbar Lordosis to Optimize L1-Pelvic Angle Offset and Minimize Mechanical Complications After Long-Level Lumbar Fusion Surgery Myung-Hoon Shin, MD, PhD
14:04 - 14:08	Paper #6: Four Distinct Pelvic Response Patterns Following Adult Spinal Deformity Surgery: A Multivariate Trajectory Analysis Jonathan Elysee, MS; Renaud Lafage, MS; Bassel G. Diebo, MD; Christopher P. Ames, MD; Shay Bess, MD; Alan H. Daniels, MD; Robert K. Eastlack, MD; Munish C. Gupta, MD, MBA; Richard Hostin, MD; Khaled M. Kebaish, MD; Eric O. Klineberg, MD; Gregory M. Mundis Jr, MD; David O. Okonkwo, MD, PhD; Peter G. Passias, MD; Themistocles S. Protopsaltis, MD; Frank Schwab, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Virginie Lafage, PhD; International Spine Study Group
14:08 - 14:17	Discussion
14:17 - 14:21	Paper #7: Gait Stability Seems to Deteriorate with Age and Sagittal Malalignment Severity Ibrahim Hamati; Abir Massaad, PhD; Rami Rachkidi, MD, MS; Moustapha Rteil; Gilles Prince; Michel Al Ammouri; Yamen Beyh; Frederic Maatouk; Josef Lattouf; Jean-Pierre Saad; Mohamad Hajj Youssef; Mohammad Ibrahim Karam, PhD, MS; Virginie Lafage, PhD; Ismat Ghanem, MD, MS; Ayman Assi, PhD
14:21 - 14:25	Paper #8: Mechanical Complications in Functional vs Normative Alignment Targets in Adult Spinal Deformity: Should There be Adjustments for Age? Alexander Kucherina, BS; Renaud Lafage, MS; Bassel G. Diebo, MD; Alex Soroceanu, MD, FRCS(C); Jeffrey Gum, MD; Gregory M. Mundis Jr, MD; Justin S. Smith, MD, PhD; Peter G. Passias, MD; Han Jo Kim, MD; Kojo D. Hamilton, MD, FAANS; Lawrence G. Lenke, MD; Munish C. Gupta, MD, MBA; Christopher P. Ames, MD; Eric O. Klineberg, MD; Frank Schwab, MD; Christopher I. Shaffrey, MD; Virginie Lafage, PhD; Shay Bess, MD; Themistocles S. Protopsaltis, MD; International Spine Study Group
14:25 - 14:29	Paper #9: Full Body Radiographs with Knee Flexion Assessment in Sagittal Deformity: Does Lower Extremity Compensation Independently Inform Alignment Correction? David D. Liu, MD; Breton Line; Feyza Achilova; Bassel G. Diebo, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Richard Hostin, MD; Peter G. Passias, MD; Eric O. Klineberg, MD; Jeffrey Gum, MD; Han Jo Kim, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Themistocles S. Protopsaltis, MD; Kojo D. Hamilton, MD, FAANS; Justin S. Smith, MD, PhD; Munish C. Gupta, MD, MBA; Brett Rocos, MD, FRCS; Jeffrey Mullin, MD; Frank Schwab, MD; Christopher I. Shaffrey, MD; Stephen J. Lewis, MD, FRCS(C); Christopher P. Ames, MD; Lawrence G. Lenke, MD; Sang Hun Lee, MD, PhD; Khaled M. Kebaish, MD; Shay Bess, MD; Alan H. Daniels, MD; International Spine Study Group
14:29 - 14:38	Discussion
14:38 - 14:42	Paper #10: Go Big or Lay-Up in Revision Adult Spinal Deformity Surgery? Contrasting the Trade-Off Between Achieving Optimal Alignment with Early Complication vs. Suboptimal Alignment Without Complication Scott Zuckerman, MD; Harsh Jain, MBBS; Byron F. Stephens, MD; Thomas Buell, MD; Nima Alan, MD; Sang Hun Lee, MD, PhD; David O. Okonkwo, MD, PhD; Stephen J. Lewis, MD, FRCS(C); Jeffrey Mullin, MD; Peter G. Passias, MD; Darryl Lau, MD; Anthony L. Mikula, MD; Jay D. Turner, MD, PhD; Joshua Bunch, MD; Brandon B. Carlson, MD; Michael P. Kelly, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Eric O. Klineberg, MD; Han Jo Kim, MD; Breton Line; Themistocles S. Protopsaltis, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Khaled M. Kebaish, MD; Paul Park, MD; Praveen V. Mummaneni, MD; Munish C. Gupta, MD, MBA; Jeffrey Gum, MD; Alan H. Daniels, MD; Bassel G. Diebo, MD; Richard Hostin, MD; Justin K. Scheer, MD; Lawrence G. Lenke, MD; Frank Schwab, MD; Christopher P. Ames, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Shay Bess, MD; International Spine Study Group
14:42 - 14:46	Paper #11: Radiographic Evaluation of ASD and its Relationship with Longitudinal Changes in Sagittal Spinal Alignment Takuya Murazumi, MD; Tetsuya Kobayashi, MD, PhD; Issei Senoo, MD; Hiroki Okayasu, MD; Kozaburo Mizutani, MD; Kengo Sasai, MD; Shoichi Saino, MD; Hiroshi Ito, MD
14:46 - 14:50	Paper #12: Why Success After Adult Spinal Deformity Surgery Depends on How Success is Defined: Insights from a Composite Outcome Framework Renaud Lafage, MS; Blerta Budani, BS; Ayman Mohamed, MD; Bassel G. Diebo, MD; Christopher P. Ames, MD; Shay Bess, MD; Alan H. Daniels, MD; Robert K. Eastlack, MD; Munish C. Gupta, MD, MBA; Richard Hostin, MD; Khaled M. Kebaish, MD; Eric O. Klineberg, MD; Gregory M. Mundis Jr, MD; Mitsuru Yagi, MD, PhD; David O. Okonkwo, MD, PhD; Peter G. Passias, MD; Themistocles S. Protopsaltis, MD; Frank Schwab, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Virginie Lafage, PhD; International Spine Study Group
14:50 - 15:00	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 2: Adolescent Idiopathic Scoliosis I

Wednesday

October 7, 2026

Moderators

Laurel C. Blakemore, MD & Meric Enercan, MD

15:20 - 15:24	Paper #13: High Accuracy, Strong Reliability, and Test–Retest Stability in Identifying New Transverse Plane Modifiers of the SRS–Lenke–Aubin 3D Classification of AIS Lawrence G. Lenke, MD; Carl Eric Aubin, PhD, P.Eng; Delphine Aubin, MS; Michael G. Vitale, MD, MPH; Virginie Lafage, PhD; Brice Ilharreborde, MD, PhD; A Noelle Larson, MD; Jeffrey Mullin, MD; Michelle C. Welborn, MD; Takashi Kaito, MD, PhD; Justin S. Smith, MD, PhD
15:24 - 15:28	Paper #14: Beyond the 2D Lenke Classification: Clinically Relevant Insights from Transverse-Plane Descriptors of the SRS-Lenke-Aubin 3D Framework in Lenke 1 AIS Carl Eric Aubin, PhD, P.Eng; Brice Ilharreborde, MD, PhD; Lawrence G. Lenke, MD; Takashi Kaito, MD, PhD; A Noelle Larson, MD; Delphine Aubin, MS; Christiane Caouette, PhD; Virginie Lafage, PhD; Justin S. Smith, MD, PhD; Jeffrey P. Mullin, MD; Michelle C. Welborn, MD
15:28 - 15:32	Paper #15: A Quantitative CT-Based Analysis of Vertebral Rotational Asymmetry and Pulmonary Function in Scoliosis Beomsu Kim, MD; Ihnseok Chae, MD; Jeuk Lee, MD; Sung Taeck Kim, MD; Bong-Soon Chang, MD, PhD; Sam Yeol Chang, MD; Hyoungmin Kim, MD
15:32 - 15:41	Discussion
15:41 - 15:45	Paper #16: Adolescent Idiopathic Scoliosis with a Major Proximal Thoracic Curve: a Rare Type not Included in the Lenke Classification System - The Incidence, Radiographic Characteristics and Surgical Strategy Huafeng Zhang, MD; Yu-Cheng Yao, MD; Ben Long Shi, MD; Saihu Mao, MD; Zhen Liu, MD, PhD; Zezhang Zhu, MD, PhD; Yong Qiu, PhD
15:45 - 15:49	Paper #17: Proximal Thoracic-Predominant Lenke 2 Curves Have Important Surgical Differences Zaid Elsabbagh, BS; Ysa Le, BS; William ElNemer, BS; Daniel Badin, MD; Peter O. Newton, MD; Suken A. Shah, MD; Paul D. Sponseller, MD
15:49 - 15:53	Paper #18: Variation in Flexibility Imaging Techniques in Adolescent Idiopathic Scoliosis (AIS): A Multicenter Study Alexander Park, BS; Michael W. Brown, BS; Mehdi Elfilali, BA; Joshua Akosa, BS; Michael G. Vitale, MD, MPH; Harms Study Group; Benjamin D. Roye, MD
15:53 - 16:02	Discussion
16:02 - 16:06	Paper #19: Accuracy of IS-GROWTH Predictions of the Risk of Reaching the Clinically Significant Thresholds of 30°, 45° And 50° In Idiopathic Scoliosis Patients Stefano Negrini, MD, PhD; Greta Jurenaite, MD; Fabio Zaina, MD; Francesco Negrini, MD
16:06 - 16:10	Paper #20: The Closing Triradiate Cartilage Stage Identifies Accelerated Curve Progression in Idiopathic Scoliosis Hong Zhang, MD; Judy-Mae Lima, BS; Chan-Hee Jo, PhD; Daniel J. Sucato, MD, MS
16:10 - 16:14	Paper #21: Deep Learning of Apical Intervertebral Disc MRI Predicts Scoliosis Progression Independent of Radiographic Parameters Conor Timothy Boylan, MBChB, MSc, BSc, MRCS Ed; Louis Anandaputra; Chuck H. Lam, BSc; Maximillian Moss, MBChB; Duncan Loader; Muhammad Othman Shafiq, OMSB-Orth; Insiya Hashim, MBBS; David S. Marks, MBBS, FRCS; Arin M. Ellingson, PhD; Morgan Jones, FRCS, MBChB
16:14 - 16:23	Discussion
16:23 - 16:27	Paper #22: Can Machine Learning Optimize Fusion Selection in Thoracic Adolescent Idiopathic Scoliosis? – A Dual-center Cohort Study with External Validation Soren Ohrt-Nissen, MD, PhD; Jason Pui Yin Cheung, MD, MBBS, MS, FRCS; Prudence Wing Hang Cheung, PhD; Martin Heegaard, MD, PhD; Laerke C. Ragborg, MD, PhD; Thomas Borbjerg. Andersen, MD, PhD; Xihe Tony. Kuang; Martin Gehrchen, MD, PhD; Benny T. Dahl, MD, PhD
16:27 - 16:31	Paper #23: Updated Guidance on Lower Instrumented Vertebra Horizontalization in Lenke C Curves after Selective Thoracic Fusion: The Concept of Dynamic Lumbar Curve Behavior Josephine R. Coury, MD; Ying Yu, MD; Eduardo C. Beauchamp, MD; Mehdi Elfilali, BA; Justin L. Reyes, MS; Nicholas Laskay, MD; Evan Joiner, MD; Lawal A. Labaran, MD; Matthew Elliot. Simhon, MD; Zeeshan M. Sardar, MD; Benjamin D. Roye, MD; Lawrence G. Lenke, MD; Michael G. Vitale, MD, MPH
16:31 - 16:35	Paper #24: Long-Term Clinical and Radiographic Outcomes of Stopping Fusion at L3 in Structural Lumbar Curves Despite Standing and Bending X-rays Indicated to Stop at L4: A Minimum 20-Year Follow Up Bugra Ayaz, MD; Ibrahim Dag, MD; Hamisi Mwarindano Mraja, MD; Ahmet Hamdi Olcar, MD; Burak Abay, MD; Ilyas Dolas, MD; Sinan Kahraman, MD; Selhan Karadereler, MD; Meric Enercan, MD; Azmi Hamzaoglu, MD
16:35 - 16:44	Discussion
16:44 - 16:48	Paper #25: Rate and Risk of Curve Progression in Moderate AIS following Skeletal Maturity Firoz Miyanji, MD, FRCS(C); Abdullah AlDuwaisan, FRCS(C); Baron S. Lonner, MD; Paul D. Sponseller, MD; Tracey P. Bastrom; Burt Yaszay, MD; Stefan Parent, MD, PhD; Amer F. Samdani, MD; Harms Study Group; Peter O. Newton, MD
16:48 - 16:52	Paper #26: Later Menarche Tracks with AIS Curve Severity—Clinical Association and Genetic Causality in 5,891 Patients Ryutaro Tanaka, MD; Takuro Iwami, MD; Yoshiro Yonezawa, MD, PhD; Nao Otomo, MD, PhD; Kazuki Takeda, MD, PhD; Shiro Ikegawa, MD, PhD; Morio Matsumoto, MD, PhD; Masaya Nakamura, MD, PhD; Chikashi Terao, MD, PhD; Kota Watanabe, MD, PhD
16:52 - 16:56	Paper #27: Sacral Slanting Predicts Residual Disc Wedging After Fusion to L3 in AIS Hiroyuki Nakarai, MD; Daiki Urayama, MD; Hideki Nakamoto, MD, PhD; So Kato, MD, PhD; Yasushi Oshima, MD, PhD; Yuki Taniguchi, MD, PhD
16:56 - 17:05	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Opening Ceremonies

Non-CME Session

Wednesday

October 7, 2026

17:20 - 17:24	Welcome to Australia Metropolitan Local Aboriginal Land Council (MLALC)
17:24 - 17:28	Welcome to Sydney Andrew K. Cree, FRCSA; Brian Hsu, MD
17:28 - 17:32	Presidential Message Suken A. Shah, MD
17:32 - 17:36	Acknowledgement of SRS Donors Paul C. Celestre, MD
17:36 - 17:40	Announcement of Beschloss Donation Laurel C. Blakemore, MD
17:40 - 17:43	Douglas C. Burton, MD Best Adult Deformity Paper Justin S. Smith, MD, PhD
17:43 - 17:47	SRS Cotrel Foundation Basic Science Research Grant Award Nicolas Plais, MD
17:47 - 17:51	Biedermann Innovation Award Winner & Award Update Announcement Markku Biedermann, MD
17:51 - 17:55	SRS Research Grant Award Winners Walter H. Truong, MD FRCS(C)
17:55 - 18:02	Presentation of Blount Humanitarian Award Selina C. Poon, MD
18:02 - 18:20	Importance of our Corporate Partners & Acknowledgement of Corporate Supporters Han Jo Kim, MD
18:20 - 18:25	Introduction of Howard Steel Lecturer Suken A. Shah, MD
18:25 - 18:55	Howard Steel Lecture David Hunt
18:55 - 19:00	Closing Remarks Suken A. Shah

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 3A: Adult Spinal Deformity II

Thursday

October 8, 2026

Moderators

Jeffrey Gum, MD & Javier Pizones, MD, PhD

08:00 - 08:05	Welcome
08:05 - 08:09	Paper #28: Is There a Cervical Alignment Threshold Warranting Cervical Inclusion in the Construct of Thoracolumbar ASD Patients? Peter G. Passias, MD; Mohammad Daher, MD, BS; David D. Liu, MD; Pratibha Nayak, PhD; Hong Joo Moon, MD; Sang Hun Lee, MD, PhD; Justin K. Scheer, MD; Anthony L. Mikula, MD; Han Jo Kim, MD; Darryl Lau, MD; Bassel G. Diebo, MD; Alan H. Daniels, MD; Gregory M. Mundis Jr, MD; Robert K. Eastlack, MD; Jeffrey Mullin, MD; Praveen V. Mummaneni, MD; Themistocles S. Protopsaltis, MD; Kojo D. Hamilton, MD, FAANS; Thomas Buell, MD; Jeffrey Gum, MD; Breton Line; Richard Hostin, MD; Alex Soroceanu, MD, FRCS(C); Dean Chou, MD; Michael Y. Wang, MD; Eric O. Klineberg, MD; Richard G. Fessler, MD, PhD; Justin S. Smith, MD, PhD; Lawrence G. Lenke, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Frank Schwab, MD; Christopher I. Shaffrey, MD; Shay Bess, MD; Christopher P. Ames, MD; International Spine Study Group
08:09 - 08:13	Paper #29: Does Proximal Thoracic Rod Contour Influence PJK Risk in Adult Spinal Deformity? Harsh Jain, MBBS; Advith Sarikonda, BS, BA; Ranbir Ahluwalia, MD; Tyler Zeoli, MD; Iyan Younus, MD; Omar Zakieh, MBBS; Hani Chanbour, MD; Bayard Wilson, MD; Byron F. Stephens, MD; Scott Zuckerman, MD
08:13 - 08:17	Paper #30: The Gradual Decay of the Proximal Junctional Angle following Thoracolumbar fusion of Adult Spine Deformity Wesley M. Durand, MD; Ahmed Sulieman, MD; Tej Azad, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Breton Line; Richard Hostin, MD; Peter G. Passias, MD; Bassel G. Diebo, MD; Eric O. Klineberg, MD; Jeffrey Gum, MD; Michael P. Kelly, MD; Han Jo Kim, MD; Robert K. Eastlack, MD; Alan H. Daniels, MD; Gregory M. Mundis Jr, MD; Themistocles S. Protopsaltis, MD; Justin S. Smith, MD, PhD; Kojo D. Hamilton, MD, FAANS; Munish C. Gupta, MD, MBA; Frank Schwab, MD; Christopher I. Shaffrey, MD; Stephen J. Lewis, MD, FRCS(C); Christopher P. Ames, MD; Lawrence G. Lenke, MD; Shay Bess, MD; Sang Hun Lee, MD, PhD; Khaled M. Kebaish, MD; International Spine Study Group
08:17 - 08:26	Discussion
08:26 - 08:30	Paper #31: Does Postoperative UIV–L1 Alignment Predict Proximal Junctional Kyphosis After Adult Spinal Deformity Surgery? Harsh Jain, MBBS; Advith Sarikonda, BS, BA; Ranbir Ahluwalia, MD; Tyler Zeoli, MD; Iyan Younus, MD; Hani Chanbour, MD; Bayard Wilson, MD; Byron F. Stephens, MD; Scott Zuckerman, MD
08:30 - 08:34	Paper #32: Development of a Novel Sagittal Segmental Phenotyping System for Mechanical Complication Risk Stratification in Degenerative Lumbar Scoliosis Surgery Weipeng Qiu, MD; Zhuoran Sun, MD; Weishi Li, MD
08:34 - 08:38	Paper #33: Lumbar Alignment Transitions: The Relationship of Lumbar Lordosis Distribution with Proximal Junctional Kyphosis and Pseudoarthrosis Travis Kotzur, MD; Lane H. McCoy, BS; R. Adams Cowley II, MD; Neset Tang, MD; Munish C. Gupta, MD, MBA; Nicholas A. Pallotta, MD, MS; Brian J. Neuman, MD
08:38 - 08:47	Discussion
08:47 - 08:51	Paper #34: Dynamic Gait-Related Sagittal Decompensation After a 10-Minute Walking Test Predicts Revision-Requiring Proximal Junctional Kyphosis Junseok Bae, MD; SangHo Lee, MD, PhD
08:51 - 08:55	Paper #35: Predicting Proximal Junctional Kyphosis in Adult Spinal Deformity Surgery in the Early Postoperative Period with High Accuracy Using a Machine Learning-Based Scoring Model Ted Shi, BS; Justin L. Reyes, MS; Varun Arvind, MD, PhD; Cole Morrissette, MD, MS; Mark Herbert, MD; Roy Miller, MD; Gabriella Greisberg, BS; Fthimnir Hassan, MPH; Eduardo C. Beauchamp, MD; Zeeshan M. Sardar, MD; Ronald Lehman Jr, MD; Lawrence G. Lenke, MD; Joseph M. Lombardi, MD
08:55 - 08:59	Paper #36: Do Supplementary Rod Constructs Influence the Rate of Proximal Junctional Kyphosis? A Multicenter Study Ahmed Sulieman, MD; Tej Azad, MD; Harsh Jain, MBBS; Advith Sarikonda, BS, BA; Virginie Lafage, PhD; Renaud Lafage, MS; Breton Line; Richard Hostin, MD; Peter G. Passias, MD; Bassel G. Diebo, MD; Eric O. Klineberg, MD; Jeffrey Gum, MD; Michael P. Kelly, MD; Han Jo Kim, MD; Robert K. Eastlack, MD; Alan H. Daniels, MD; Gregory M. Mundis Jr, MD; Themistocles S. Protopsaltis, MD; Kojo D. Hamilton, MD, FAANS; Justin S. Smith, MD, PhD; Munish C. Gupta, MD, MBA; Frank Schwab, MD; Christopher I. Shaffrey, MD; Stephen J. Lewis, MD, FRCS(C); Christopher P. Ames, MD; Lawrence G. Lenke, MD; Shay Bess, MD; Sang Hun Lee, MD, PhD; Byron F. Stephens, MD; Scott Zuckerman, MD; Khaled M. Kebaish, MD; International Spine Study Group
08:59 - 09:08	Discussion
09:08 - 09:12	Paper #37: The Breakdown on Breakage: Why Pre-bent Rods Outperform Manual Contouring in ASD Surgery Garima Paul, MD; Matthew Miyasaka, AB; Alexander Kucherina, BS; Mina Eskandar, MS, BS; Constance Maglaras, PhD; Themistocles S. Protopsaltis, MD; Tina Raman, MD
09:12 - 09:16	Paper #38: The Over-Widening Phenomenon as a Risk Factor for Rod Fracture after Deformity Corrective Surgery using Anterior Column Realignment in Patients with Degenerative Sagittal Imbalance SungMin Kim, MD, PhD; Yong-Chan Kim, MD, PhD; Inseok Son, MD; XiongJie Li, MD; LinJin Mao, MD
09:16 - 09:20	Paper #39: Rod Fractures After Adult Spinal Deformity Surgery: What Happens After 2-years? Harsh Jain, MBBS; Albert Cordoves, BS; Emma Ye, BA; Advith Sarikonda, BS, BA; Hani Chanbour, MD; Tyler Zeoli, MD; Ranbir Ahluwalia, MD; Iyan Younus, MD; Soren Jonzzon, MD; Byron F. Stephens, MD; Bayard Wilson, MD; Scott Zuckerman, MD
09:20 - 09:29	Discussion
09:29 - 09:33	Paper #40: Rethinking ASD in 3D: How Scoliosis Correction Interacts with Sagittal Alignment and PJK Ahmed Sulieman, MD; Goutham Yalla, MD; Tej Azad, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Breton Line; Richard Hostin, MD; Peter G. Passias, MD; Bassel G. Diebo, MD; Eric O. Klineberg, MD; Jeffrey Gum, MD; Michael P. Kelly, MD; Han Jo Kim, MD; Robert K. Eastlack, MD; Alan H. Daniels, MD; Gregory M. Mundis Jr, MD; Themistocles S. Protopsaltis, MD; Kojo D. Hamilton, MD, FAANS; Justin S. Smith, MD, PhD; Munish C. Gupta, MD, MBA; Frank Schwab, MD; Christopher I. Shaffrey, MD; Stephen J. Lewis, MD, FRCS(C); Christopher P. Ames, MD; Lawrence G. Lenke, MD; Shay Bess, MD; Sang Hun Lee, MD, PhD; Khaled M. Kebaish, MD; International Spine Study Group
09:33 - 09:37	Paper #41: Evolution of Surgical Strategy in Adult Spinal Deformity: A Longitudinal Analysis of Sagittal Alignment and 2-Year Outcomes Across 18 Years Emil Haikal, MD; Renaud Lafage, MS; Jonathan Elysee, MS; Bassel G. Diebo, MD; Christopher P. Ames, MD; Shay Bess, MD; Alan H. Daniels, MD; Robert K. Eastlack, MD; Munish C. Gupta, MD, MBA; Jeffrey Gum, MD; Richard Hostin, MD; Khaled M. Kebaish, MD; Han Jo Kim, MD; Eric O. Klineberg, MD; Lawrence G. Lenke, MD; Gregory M. Mundis Jr, MD; David O. Okonkwo, MD, PhD; Pierce D. Nunley, MD; Peter G. Passias, MD; Frank Schwab, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Virginie Lafage, PhD; International Spine Study Group
09:37 - 09:41	Paper #42: Fate of the Unfused Distal Lumbar Coronal Curve After Scoliosis Correction in Children versus Adults: A Collaborative Study Group Analysis Alan H. Daniels, MD; David D. Liu, MD; Amer F. Samdani, MD; Bassel G. Diebo, MD; Peter O. Newton, MD; Michael Farias, BS; Feyza Achilova; Lawrence G. Lenke, MD; Jeffrey Gum, MD; Kojo D. Hamilton, MD, FAANS; Justin S. Smith, MD, PhD; Christopher I. Shaffrey, MD; Shay Bess, MD; Keith R. Bachmann, MD; Harms Study Group; International Spine Study Group
09:41 - 09:50	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 3B: Progress Report: Discussing Outcomes in AIS

Thursday

October 8, 2026

Moderators

TBA & Stephen Parent, MD, PhD

08:00 - 08:05	Welcome
08:05 - 08:09	Paper #43: Thoracic Kyphosis Restoration Is Associated with Improvement of the L1 Pelvic Angle in Thoracic Adolescent Idiopathic Scoliosis Yusuke Hori, MD, PhD; Takashi Namikawa, MD, PhD; Masaki Kawamura, MD; Masahiro Ohno, MD; Kazuki Ohki, MD; Akira Matsumura, MD, PhD
08:09 - 08:13	Paper #44: Global Sagittal Equilibrium in Pediatric Scoliosis is Maintained Postoperatively via Compensations Rather than Construct Optimization Deniz Kara, MD; Bryan Menapace, MD, MBA; Daniel Bouton, MD; Robert Bernstein, MD; Joseph Ivan Krajbich, MD; Jeffrey M. Hills, MD; Michelle C. Welborn, MD; Rebecca GraceTracey, RN; Cindy Nguyen, PA-C; Michael P. Kelly, MD; Chinmay Paranjape, MD, MHSc
08:13 - 08:17	Paper #45: Impact of Three-Dimensional Thoracic Hypokyphosis on Lower Cervical Degeneration and Cervical Alignment After Deformity Correction in Adolescent Idiopathic Scoliosis Hong Jin Kim, MD, PhD; Chang Hwa Ham, MD, PhD; Subin Lim, MD; Hyung Rae Lee, MD; Jae Hyuk Yang, MD, PhD; Seung Woo Suh, MD, PhD
08:17 - 08:26	Discussion
08:26 - 08:30	Paper #46: Preoperative Thoracic Kyphosis, Not Implant Choice or Navigation, Predicts Proximal Junctional Kyphosis in Adolescent Idiopathic Scoliosis Eddie Geagea, MD; Manas Peddiboyina, MS; John Lovejoy, MD
08:30 - 08:34	Paper #47: Sagittal Profiles and their Reciprocal Changes Manifesting in Proximal Junctional Kyphosis in Adolescent Idiopathic Scoliosis Hong Jin Kim, MD, PhD; Hyung Rae Lee, MD; Subin Lim, MD; Jae Hyuk Yang, MD, PhD; Seung Woo Suh, MD, PhD
08:34 - 08:38	Paper #48: Does T4PA–L1PA Mismatch Matter? Patient-Reported Outcomes After Posterior Fusion for Adolescent Idiopathic Scoliosis: Min 20 years Follow-up Ibrahim Dag, MD; Hamisi Mwarindano Mraja, MD; Bugra Ayaz, MD; Ahmet Hamdi Olcar, MD; Ilyas Dolas, MD; Sinan Kahraman, MD; Meric Enercan, MD; Selhan Karadereler, MD; Azmi Hamzaoglu, MD
08:38 - 08:47	Discussion
08:47 - 08:51	Paper #49: What is the Risk of Disc Wedging and Progression in Selective Thoracic Fusions with Lenke C Modifiers in Adolescent Idiopathic Scoliosis? Alexander J. Schupper, MD; Amer F. Samdani, MD; Joshua M. Pahys, MD; Terrence G. Ishmael, MBBS; Suken A. Shah, MD; Firoz Miyanji, MD, FRCS(C); Harms Study Group; Steven W. Hwang, MD
08:51 - 08:55	Paper #50: The Role of Vertebral Rotation Discrepancy for Add-on Phenomenon in Thoracic Curves of Adolescent Idiopathic Scoliosis Hong Jin Kim, MD, PhD; Hyung Rae Lee, MD; Subin Lim, MD; Jae Hyuk Yang, MD, PhD; Seung Woo Suh, MD, PhD
08:55 - 08:59	Paper #51: ΔUIV Tilt Correction ≥10° Is an Independent Risk Factor for Left PSI at 2 Years in Lenke 1 AIS Ryutaro Tanaka, MD; Kazuki Takeda, MD, PhD; Takahito Iga, MD, PhD; Toshiki Okubo, MD, PhD; Masahiro Ozaki, MD, PhD; Satoshi Suzuki, MD, PhD; Narihito Nagoshi, MD, PhD; Morio Matsumoto, MD, PhD; Masaya Nakamura, MD, PhD; Kota Watanabe, MD, PhD
08:59 - 09:08	Discussion
09:08 - 09:12	Paper #52: Distal Instrumentation Failure After Posterior Spinal Fusion in Adolescent Idiopathic Scoliosis: Incidence, Risk Factors, and Radiographic Impact Myeong Geun Song, MD; Chang Ju Hwang, MD, PhD; Dong-Ho Lee, MD, PhD; Jae Hwan Cho, MD, PhD; Sehan Park, MD, PhD; Wan Soo Park, MD
09:12 - 09:16	Paper #53: What Factors Allow Us to Predict Ideal Radiographic Outcomes at 2 and 5 Years in Selective Thoracic Fusion in Lenke C AIS? Tej Azad, MD; Michael Rothbaum, MD; Joshua M. Pahys, MD; Amer F. Samdani, MD; Terrence G. Ishmael, MBBS; Todd F. Ritzman, MD; Firoz Miyanji, MD, FRCS(C); Suken A. Shah, MD; Peter O. Newton, MD; Harms Study Group; Steven W. Hwang, MD
09:16 - 09:20	Paper #54: Lumbar Curve Correction is Durable at 5 Years After Thoracic Fusion in Patients with Open Triradiate Cartilage Scott Yang, MD; Bailey Ingalls, MD; Tracey Bryan, MS; Jennifer M. Bauer, MD, MS; Paul D. Sponseller, MD; Suken A. Shah, MD; Peter O. Newton, MD; Burt Yaszay, MD; Harms Study Group
09:20 - 09:29	Discussion
09:29 - 09:33	Paper #55: Health Related Quality of Life Assessment Using the Srs-22 Questionnaire Comparing Adolescent Idiopathic Scoliosis (AIS) versus Adult Idiopathic Scoliosis (AdIS) who had undergone Posterior Spinal Fusion (PSF): A Propensity Score Matched Study Chris Yin Wei Chan, MD, MSOrth; Amanda Weng Yee. Leong, MBBS; Van Jet Leong, MBBS; Hui Chin Ting, MBBS; Zhi Sean Teng, MBBS; Chee Kidd Chiu, MBBS, MSOrth; Mun Keong Kwan, MBBS, MSOrth
09:33 - 09:37	Paper #56: Age Matters: Increased Perioperative Morbidity in Young Adults Compared to Adolescents Undergoing Posterior Spinal Fusion for Idiopathic Scoliosis Vivien Chan, MD, MS; Luke Maclean, MD, PhD; Prudhvi Kodali, BA; Justin L. Reyes, MS; Mehdi Elfilali, BA; Michael G. Vitale, MD, MPH; Zeeshan M. Sadar, MD, MS; David L. Skaggs, MD, MMM
09:37 - 09:41	Paper #57: Longitudinal Patient-Reported Outcomes Following Spinal Fusion for Adolescent Idiopathic Scoliosis: Recovery Trajectories and Implications for Surgical Timing Wai Wang Chau, MS; Alec Lik Hang Hung, FRCS; Adam Yiu Chung Lau, FRCS
09:41 - 09:50	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 4: Translational/Basic Science, Harrington Lecture, & Lifetime Achievement Award

Thursday

October 8, 2026

Moderators

Brian J. Neuman, MD & Caglar Yilgor, MD

10:10 - 10:14	Paper #58: The Evolution of Sagittal Alignment in Pediatric Population: A Study of 500 Typically Developing Children Anuj Gupta, MD; Alexander Aretakis, MD; Satoshi Takada, MD; Peter G. Gabos, MD; Petya Yorgova, MS; Andrea Elsby, BS; Suken A. Shah, MD
10:14 - 10:18	Paper #59: Defining Whole Spine Sagittal Alignment Parameters in Normal Population: Prospective Analysis of 50000 Patients Sung Hyeon Noh, MD, PhD
10:18 - 10:22	Paper #60: Does everyone with a given PI have the same L1PA? The importance of L4S1 in Sagittal Alignment Stephen J. Lewis, MD, FRCS(C); Fatemeh Alavi, PhD; Christopher J. Nielsen, MD; Fred H. Nicholls, MD
10:22 - 10:31	Discussion
10:31 - 10:35	Paper #61: Establishing Lumbar Apex Pelvic Angle (LaPA) as the Rosetta Stone of Spinal Shape Sleiman Haddad, MD, PhD, FRCS; Lluis Vila Castillo, MD; Susana Nunez Pereira, MD, PhD; Anika Pupak, PhD, BS; Javier Pizones, MD, PhD; Michael P. Kelly, MD; Jeffrey M. Hills, MD; Frank Kleinstuck, MD; Ahmet Alanay, MD; Ibrahim Obeid, MD; Ferran Pellise, MD, PhD; Yann Phillippe Charles, MD, PhD; European Spine Study Group ESSG
10:35 - 10:39	Paper #62: Using Artificial Intelligence to Capture CT Films with Smartphones for Automatic Recognition of Osteoporosis Junyu Li, MD; Da Zou, MD; Liangyuan Wang, MD; Yongqiang Wang, MD; Zhuoran Sun, MD; Miao Yu, MD; Weishi Li, MD
10:39 - 10:43	Paper #63: Utilizing a Supervised Machine Learning Strategy to Automate Detection of Bony Fusion Using X-Rays in Lumbar Fusion Surgery ‡ Rushikesh S. Joshi, MD; Edward S. Harake, BS; Todd C. Hollon, MD; Paul Park, MD
10:43 - 10:52	Discussion
10:52 - 10:56	Paper #64: Development and Validation of the Three-dimensional Depth Sensor Imaging System for Non-invasive Scoliosis Screening Chen Liu, MD; Shao Chen, MD; Xiao-min Chen, MD; Yin-ling Sun, MD; Kai-qi Wang, MD; Honggen Du, MD
10:56 - 11:00	Paper #65: Machine Learning Prediction of Cobb Angle from 3D Surface Topography in Adolescent Idiopathic Scoliosis: A Radiation-Free Alternative Jose Maria Gonzalez Ruiz, PhD; Stephan Rothstock, PhD; Javier Pizones, MD, PhD
11:00 - 11:04	Paper #66: XR-GAN Enables Radiation-Free Radiograph Synthesis After Posterior Spinal Fusion in Adolescent Idiopathic Scoliosis: Toward Remote Follow-Up Nan Wu, MD; Jingxi Su, ME; Aoran Maheshati, MD; Kexin Xu, MS; Xiangjie Yin, MD; Jianguo Terry. Zhang, MD
11:04 - 11:13	Discussion
11:13 - 11:17	Paper #67: Impaired Laminin-Dystroglycan/Integrin Signaling from Fibro-Adipogenic Progenitor Drives Deep Paravertebral Muscle Strength Imbalance in Adolescent Idiopathic Scoliosis Xuan Huang, MD; Jiafeng Dai, MD; Zhen Wang, MD; Junduo Zhao, MD; Haoyu Cai, MD; Hongyi Zhou, MD; Yutian Niu, MD; Yizhen Huang, MD; Heng Sun, MD; Yong Zhang, PhD; Jianxiong Shen, MD
11:17 - 11:21	Paper #68: Unilateral Intradiscal Injection of Vosoritide-Loaded PLGA Microspheres Induces Asymmetric Spinal Growth in Juvenile Rabbits Xiaochen Yang, MD; Yingsong Wang, MD; Zhi Zhao, MD; Jingming Xie; Ying Zhang, MD; Tao Li, MD; Ni Bi, MD; Zhiyue Shi, MD; Li Zhang, MD; Zhibo Song, MD; Zhaoquan Zhang, MD; Quan Li, MD; Yingliang Liu, MD
11:21 - 11:25	Paper #69: Increasing Opioid Dose Impairs Spinal Fusion in a Rat Model ‡ Dillon Stone, MD; Garrison Bentz, BS; Jonathan Dalton, MD; Lane H. McCoy, BS; Simon Y. Tang, PhD; Dessislava Markova, PhD; Munish C. Gupta, MD, MBA; Mark Lambrechts, MD
11:25 - 11:34	Discussion
11:35 - 11:40	Harrington Lecture Introduction Suken A. Shah, MD
11:40 - 12:00	Harrington Lecture Todd J. Albert, MD
12:00 - 12:15	Presentation of the Lifetime Achievement Award Ferran Pellise, MD, PhD

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Half-Day Course 1: Anatomical Transition Zones

Thursday

October 8, 2026

Moderators

Arun R. Hariharan, MD, MS; Anthony L. Mikula, MD

14:10 - 14:13	Introduction Arun R. Hariharan, MD, MS; Anthony L. Mikula, MD
Mini-Lectures
14:15 - 14:21	Occipitocervical Junction Fixation Strategies Daniel M. Sciubba, MD
14:21 - 14:25	Discussion
14:25 - 14:31	Cervicothoracic Junction - Key Radiographic Parameters, Level Selection, and Technical Pearls Venu Nemani, MD
14:31 - 14:35	Discussion
14:35 -14:41	Thoracolumbar Junction - Tailoring Alignment Goals and Avoiding Revisions Firoz Miyanji, MD, FRCS(C)
14:41 - 14:45	Discussion
14:45 - 14:51	Lumbosacral Junction: Fractional Curves and Special Considerations Alan H. Daniels, MD
14:51 - 14:55	Discussion
14:55 - 15:01	The Spine-Hip Interface at the Thoracolumbar and Lumbosacral Junction: When Hip Pathology Drives Level Selection Robert K. Eastlack, MD
15:01 - 15:05	Discussion
Pediatrics Debate
Pelvic Fixation Dogma in Neuromuscular and Syndromic Deformity: Who Really Needs It? Moderator: Brandon A. Ramo, MD
15:05 - 15:10	Always Fuse to The Pelvis in Non-Ambulator and Never in an Ambulator Vidyadhar V. Upasani, MD
15:10 - 15:15	It's OK to Stop Short of the Pelvis in a Non-Ambulator and Go to The Pelvis in an Ambulator Haemish A. Crawford, FRCS
15:15 - 15:23	Discussion
Adult Junction Debates
Proximal Junction Kyphosis Prophylaxis Techniques Moderator: Gregory M. Mundis, Jr., MD
15:23 -15:28	Tethers, Cement, Hooks: You Need It All Justin K. Scheer, MD
15:28 - 15:33	You Don't Need Junctional Prophylaxis Gimmicks - Alignment is All That Matters Mitsuru Yagi, MD, PhD
15:33 - 15:38	Discussion
Lumbosacral Junctional Interbody Fusion Moderator: Francis Lovecchio, MD
15:38 - 15:43	Lumbosacral Junctional Interbody Fusion \| I Always Do an Interbody at L5-S1 Benjamin D. Elder, MD, PhD
15:43 - 15:48	Lumbosacral Junctional Interbody Fusion \| An L5-S1 Interbody is a Waste of Time Han Jo Kim, MD
15:48 - 15:53	Discussion
15:53 - 15:55	Closing Comments Arun R. Hariharan, MD, MS; Anthony L. Mikula, MD

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 5: Anything but Fusion: Non-Op and VBT in AIS

Thursday

October 8, 2026

Moderators

Steven W. Hwang, MD & Stephanie Da Paz, MD

14:10 - 14:14	Paper #70: Consensus-Based Guidelines for Research in Bracing in Idiopathic Scoliosis by the SRS Comprehensive Care Committee in Collaboration with SOSORT Alexander Park, BS; Michael W. Brown, BS; Mehdi Elfilali, BA; Caglar Yilgor, MD; Tom PC. Schlosser, MD, PhD; Stefano Negrini, MD, PhD; Sabrina Donzelli, MD; Brian Smith, MD; Benjamin D. Roye, MD
14:14 - 14:18	Paper #71: Doomed to fail? Early Brace Adherence Predicts Long Term Brace Wear Behavior Erica Olfson, BS; Anne Boeckmann, BS; David C. Thornberg, BS; Daniel J. Sucato, MD, MS; Amy Lynn. McIntosh, MD; Brandon A. Ramo, MD; Jaysson T. Brooks, MD; Megan Johnson, MD
14:18 - 14:22	Paper #72: A Step Closer to Bringing Idiopathic Scoliosis Monitoring at Home: A Smartphone App Accurately Generates Digital Twins in 624 Pediatric Patients Paolo Brigato, MD; Gianmario Sangiovanni, PhD; Sabina Fehric, MSc; Kevin Smit, MD; Andrew Tice, MD; Firoz Miyanji, MD, FRCS(C); Stefan Parent, MD, PhD; Neil Saran, FRCS(C); Thierry A. Odent, MD, PhD; Anne TabardFougere, PhD; Natahly Gavira, MD; Romain Dayer, MD; Jean Albert Ouellet, MD, FRCS(C)
14:22 - 14:30	Discussion
14:30 - 14:34	Paper #73: Casting and Bracing are Associated with Worsening Quality of Life (QOL) in Early Onset Scoliosis (EOS) Patients – Does QoL Improve with Surgery? Brigid S. Kennedy, MPhil; Sumeet Garg, MD; Benjamin D. Roye, MD; Mark A. Erickson, MD; Michael G. Vitale, MD, MPH; Carol A. Janney, PhD; Ying Li, MD; Pediatric Spine Study Group
14:34 - 14:38	Paper #74: Boys with Adolescent Idiopathic Scoliosis Treated with Nighttime Bracing Have Similar Outcomes to Girls Karina Amani. Zapata, PhD, DPT; James McGinley, BS; Daniel J. Sucato, MD, MS; Katherine Beard, BS; Kara Davis, MS, CPO; Chan-Hee Jo, PhD; Megan Johnson, MD
14:38 - 14:42	Paper #75: Nighttime Bracing is Equivalent to Full-time Bracing in Avoiding Curve Progression to Surgery in AIS Curves 20-35° Karina Amani. Zapata, PhD, DPT; Banahene Glover, BS; Alexander Palma, BA; Kara Davis, MS, CPO; Chan-Hee Jo, PhD; Megan Johnson, MD
14:42 - 14:50	Discussion
14:50 - 14:54	Paper #76: Impact of Skeletal Maturity in Vertebral Body Tethering: Early Outcomes from a Prospective, Multicenter Study Hans Nugraha, MD; Lawrence Lee. Haber, MD; Dan Hoernschemeyer, MD; Patrick J. Cahill, MD; Amer F. Samdani, MD; Firoz Miyanji, MD, FRCS(C); Peter O. Newton, MD; Kevin M. Neal, MD; A Noelle Larson, MD
14:54 - 14:58	Paper #77: Prospective, Multicenter Comparison of Hybrid and Bilateral VBT in the Treatment of Idiopathic Scoliosis Firoz Miyanji, MD, FRCS(C); Sager Hanna, MD; Shaina Sim, BS; Amer F. Samdani, MD; Baron S. Lonner, MD; Joshua M. Pahys, MD; Ahmet Alanay, MD; Stefan Parent, MD, PhD; Abdullah AlDuwaisan, FRCS(C); Peter O. Newton, MD
14:58 - 15:02	Paper #78: Defining Multidomain “Success” After Vertebral Body Tethering for Adolescent Idiopathic Scoliosis Mina Eskandar, MS, BS; Alexander Kucherina, BS; Garima Paul, MD; Constance Maglaras, PhD; Themistocles S. Protopsaltis, MD; Tina Raman, MD; Juan Carlos Rodriguez-Olaverri, MD
15:02 - 15:10	Discussion
15:10 - 15:14	Paper #79: Double Major Curves in AIS: Results of a Novel Hybrid Approach Combining Thoracic Fusion with Lumbar Vertebral Body Tethering Amer F. Samdani, MD; Alexander J. Schupper, MD; Joshua M. Pahys, MD; Emily Nice, BS; Sanaa Jackson, BS; Terrence G. Ishmael, MBBS; Steven W. Hwang, MD
15:14 - 15:18	Paper #80: First 30 AIS Patients Treated with Posterior Fusion of Structural Disc Levels (SDL) And Fusionless Treatment of Non-SDL Had Preserved ROM And Less Fusion: A Prospective Study Saechin Kim, MD, PhD; Nadim J. Kheir, MD; Philip Hanna; Hao-Hua Wu, MD
15:18 - 15:22	Paper #81: What Could Possibly Go Wrong? A Comprehensive Assessment of Complications Following Vertebral Body Tethering Kevin M. Neal, MD; Melanie E. Boeyer, PhD; Maty Petcharaporn, BS; John S. Vorhies, MD; A Noelle Larson, MD; Lawrence Lee. Haber, MD; Stefan Parent, MD, PhD; Michelle Claire Marks; Suken A. Shah, MD; Harms Study Group; Firoz Miyanji, MD, FRCS(C)
15:22 - 15:30	Discussion
15:30 - 15:34	Paper #82: Tether Breakage Across First-Generation and Second-Generation Vertebral Body Tethering Devices Thomas A. Coleman, BS; Andrew Kim, BS; Vineet Desai, MD; Stefan Parent, MD, PhD; Firoz Miyanji, MD, FRCS(C); Ahmet Alanay, MD; Sulagna Sarkar, MS; Jason Brett. Anari, MD; Brett Lullo, MD; Harms Study Group; Patrick J. Cahill, MD
15:34 - 15:38	Paper #83: Does Larger-Diameter Tether Improve Outcomes After Vertebral Body Tethering? A 4 mm vs. 5 mm Comparative Study Alice Baroncini, MD, PhD; Jil Frank; Miguel Pishnamaz, MD; Per D. Trobisch, MD
15:38 - 15:42	Paper #84: Who Breaks and Why? A Validated Predictive Model of Tether Failure After Vertebral Body Tethering in Adolescent Idiopathic Scoliosis Garima Paul, MD; Alexander Kucherina, BS; Mina Eskandar, MS, BS; Matthew Miyasaka, AB; Constance Maglaras, PhD; Themistocles S. Protopsaltis, MD; Tina Raman, MD; Juan Carlos Rodriguez-Olaverri, MD
15:42 - 15:46	Paper #85: Is rhBMP-2 Worth the Risk? A Data-Driven Look at Fusion Outcomes and rhBMP-2 Related Complication Burden in High-Risk Adult Spinal Deformity Patients Duby Okonkwo, BS; Harsh Jain, MBBS; Nick De Oliveira, BA; Sam Kavarana, BS; Advith Sarikonda, BS, BA; Bayard Wilson, MD; Byron F. Stephens, MD; Scott Zuckerman, MD
15:46 - 15:55	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 6: Hibbs Award-Nominated Papers

Friday

October 9, 2026

Moderators

Kariman Abelin Genevois, MD & WG Stuart Mackenzie, MD

08:00 - 08:05	Welcome & Introduction to the Hibbs Award
08:05 - 08:11	Paper #86: Preclinical Targeting of the Osteopontin–α5β1 Integrin Axis Reveals a Disease-Modifying Mechanism in Adolescent Idiopathic Scoliosis † Alain Moreau, PhD; Mohamed Elbakry, PhD; Anita Franco, MS
08:11 - 08:17	Paper #87: A Single DNA-Based Polygenic Risk Score for Adolescent Idiopathic Scoliosis Improved by Patient-Derived Paravertebral Muscle Gene-Activity Data † Takuro Iwami, MD; Nao Otomo, MD, PhD; Yoshinao Koike, MD; Akari Suzuki, PhD; Raku Son, MD, PhD; Anas M. Khanshour, PhD; Ming Yue, PhD; Yoshiro Yonezawa, MD, PhD; Kazuki Takeda, MD, PhD; Akiko Oguchi, MD, PhD; Xiaoxi Liu, PhD; Jason Pui Yin Cheung, MD, MBBS, MS, FRCS; Shiro Ikegawa, MD, PhD; Morio Matsumoto, MD, PhD; Unnur Thorsteinsdottir, PhD; Yasuhiro Murakawa, MD, PhD; YouQiang Song, PhD; Carol A Wise, PhD; Masaya Nakamura, MD, PhD; Chikashi Terao, MD, PhD; Kota Watanabe, MD, PhD
08:17 - 08:23	Paper #88: Gut Microbiome–Derived TMAO Pathway as a Central Metabolic Driver of Biological Aging in Adult Spinal Deformity † ‡ Mitsuru Yagi, MD, PhD; Keitaro Ito, MD, PhD; Ryo Mizukoshi, MD; Norihiro Isogai, MD, PhD; Haruki Funao, MD, PhD; Naobumi Hosogane, MD, PhD; Christopher P. Ames, MD; Retsu Fujita, PhD
08:23 - 08:37	Discussion
08:37 - 08:43	Paper #89: Genetic Study of 100 Idiopathic Early-Onset Scoliosis Families Provides New Hypotheses to Explain its Pathogenesis † Nao Otomo, MD, PhD; Yared Kidane, PhD; Behrooz A. Akbarnia, MD; Charles E. Johnston, MD; Amy Lynn. McIntosh, MD; Jonathan J. Rios, PhD; Brandon A. Ramo, MD; Carol A Wise, PhD
08:43 - 08:49	Paper #90: Surgical vs Nonsurgical Treatment in Patients Living with Adolescent Idiopathic Scoliosis (AIS): A Target Trial Emulation with 30 Years of Follow-up § ‡ Javier Pizones, MD, PhD; Javier Munoz Laguna, MS; Anika Pupak, PhD, BS; Yann Phillippe Charles, MD, PhD; Kenny YH. Kwan, BMBCh(Oxon), FRCSEd; Manuel Rigo, MD; Lucia Moreno-Manzanaro, BS; Antonia Matamalas, MD, PhD; Alejandro Gomez-Rice, MD, PhD; Susana Nunez Pereira, MD, PhD; Sleiman Haddad, MD, PhD, FRCS; Jwalant Mehta, FRCS; Nasir A. Quraishi, PhD, FRCS; Satoshi Suzuki, MD, PhD; Frank S. Kleinstueck, MD; Ibrahim Obeid, MD; Ahmet Alanay, MD; Munish C. Gupta, MD, MBA; Miquel SerraBurriel, PhD; Ferran Pellise, MD, PhD; ESSG History Study Group
08:49 - 08:55	Paper #91: Does Early Administration of Disease Modifying Therapy (DMT) Prevent Early Onset Scoliosis (EOS) in Spinal Muscular Atrophy (SMA) § Hiroko Matsumoto, PhD; Yuri Ota, MD, PhD; Thomas A. Coleman, BS; Lennert Plasschaert, MD; Joyce Huang; Amy Pasternak; Allan Glanzman, PT, DPT, PCS; Jason Brett. Anari, MD; Elena Losina, PhD; Robert J. Graham, MD; Ron El Hawary, MD, MSc; Patrick J. Cahill, MD; Brian D. Snyder, MD, PhD
08:55 - 09:09	Discussion
09:09 - 09:15	Paper #92: Tranexamic Acid Dosing in Deformity Spine Surgery: A 3-Year Prospective Randomized Comparison of Low-Dose versus High-Dose Regimens § Sharif Ahmed. Jonayed, MBBS, MS
09:15 - 09:21	Paper #93: Casting and Bracing as a Bridging Strategy to Delay Surgery in Young Children with Thoracolumbar and Lumbar Formation-Failure Congenital Scoliosis § Kazuki Kawakami, MD; Noriaki Kawakami, MD; Tetsuya Ohara, MD; Hiroaki Nakashima, MD, PhD; Shiro Imagama, MD, PhD; Hiroko Matsumoto, PhD
09:21 - 09:27	Paper #94: Non-Operative Treatment for Adult Spinal Deformity: Long Term Results of a Biopsychosocial Intervention – A Prospective Cohort Study With a Mean Follow-Up of 8 Years § Philip Horsting, MD; Evelien Hoevenaars; Michiel Beekhuizen, MD, PhD; John O'Dowd, MD; Marinus de Kleuver, MD, PhD; Miranda L. Van Hooff, PhD
09:27 - 09:33	Paper #95: Ten-Year Natural History and Clinical Impact of Distal Adding-on After Posterior Spinal Fusion for Lenke 1A/2A Adolescent Idiopathic Scoliosis § Masayuki Ohashi, MD, PhD; Kei Watanabe, MD, PhD; Toru Hirano, MD, PhD; Kazuhiro Hasegawa, MD, PhD; Hideki Tashi, MD; Keitaro Minato, MD, PhD; Yohei Shibuya, MD; Masayuki Sato, MD; Mio Kubota, MD, PhD; Hiroyuki Kawashima, MD, PhD
09:33 - 09:49	Discussion
09:49 - 09:50	Audience Vote

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 7: Syndromic/Neuromuscular

Friday

October 9, 2026

Moderators

Arvindera Ghag, MD, FRCS & Karen A. Weissmann, MD, PhD

10:10 - 10:14	Paper #96: Multicenter Treatment Patterns and Surgical Outcomes in Marfan Syndrome Associated Scoliosis Mehdi Elfilali, BA; Michael W. Brown, BS; Alexander Park, BS; David Gorman, BA/MPH; Omar Taha, BS; Matthew Weintraub, BS; Daniel J. Hedequist, MD; Purnendu Gupta, MD; Joshua M. Pahys, MD; Paul D. Sponseller, MD; Benjamin D. Roye, MD; Pediatric Spine Study Group; Michael G. Vitale, MD, MPH
10:14 - 10:18	Paper #97: A Two-Year International Retrospective Cohort Study Comparing the Efficacy and Complication Rates of the OWSER and MCGR Systems in the Treatment of Spinal Muscular Atrophy Mareille Post, MD; luca fabio. colombo, MD; Marco Ramella, MD; Lotfi Miladi, MD; Jean-Paul Kaleeta Maalu, MD; Louis Boissiere, MD; Moyo C. Kruyt, MD, PhD; Jeroen Renkens, MD; Esther Janssen, PhD; Barend J. Van Royen, MD, PhD
10:18 - 10:22	Paper #98: Scoliosis in Pediatric Severe Osteogenesis Imperfecta: A Multicenter Study of Progression and Surgical Outcomes Cynthia V. Nguyen, MD; Alfonso Ocampo, MD; Bryan Menapace, MD, MBA; Selina C. Poon, MD
10:22 - 10:31	Discussion
10:31 - 10:35	Paper #99: Intraoperative Neuromonitoring in Neuromuscular Scoliosis: Feasibility, Obstacles, Outcomes, and Resolution Terrence G. Ishmael, MBBS; Joshua M. Pahys, MD; Steven W. Hwang, MD; Tracey Bryan, MS; Suken A. Shah, MD; Jaysson T. Brooks, MD; Stefan Parent, MD, PhD; Paul D. Sponseller, MD; Peter O. Newton, MD; Harms Study Group; Amer F. Samdani, MD
10:35 - 10:39	Paper #100: Perioperative Complication Severity is Associated with GMFCS Sub-Classification in Cerebral Palsy Jessica Siragusa, MBA; Sydney Thai, BS; Furqan Ahmed, BS; Krystell E Ceballos Alvarez, BS; Paul D. Sponseller, MD; Amit Jain, MD, MBA
10:39 - 10:43	Paper #101: Longer Operative Times are Associated with Increased Morbidity in Pediatric Neuromuscular Scoliosis Surgery Luke Maclean, MD, PhD; Andrea Simmonds, MD; David L. Parsons, MD, FRCS; David L. Skaggs, MD, MMM; Vivien Chan, MD, MS
10:43 - 10:52	Discussion
10:52 - 10:56	Paper #102: Sacro-Alar Angle as a Morphologic Predictor of S2AI Screw Infeasibility in Pediatric Neuromuscular Scoliosis with Pelvic Asymmetry Juan Pablo. Arispe, MD; Eduardo Galaretto, MD; Sofia Frank, MD; Norberto C. Fernandez, MD; Nicolas Bacaloni, MD; Leonel Shteinberg, MD; Cristian Fuster, PhD; Esteban Robledo, PhD; Carlos Alberto. Tello, MD, PhD
10:56 - 11:00	Paper #103: Long Term Follow-up of Non-ambulatory Children with Cerebral Palsy (CP) Treated for Spine and Hip Pathoanatomy Rachel Lee. DiFazio, PhD, RN; Meghana Venkatesh, MS; Patricia E. Miller, PhD, MS; Judith Anne. Vessey, PhD, RN; Benjamin J. Shore, MD; Brian D. Snyder, MD, PhD
11:00 - 11:04	Paper #104: The Price of Alignment: Cost Drivers in Posterior Fusion for Neuromuscular Scoliosis Jeremy Siu; Vanessa Toomey, MD; Jacquelyn N. Valenzuela-Moss, MPH; Tyler Tetreault, MD; Lindsay M. Andras, MD; Michael J. Heffernan, MD
11:04 - 11:13	Discussion
11:13 - 11:15	2027 IMAST Preview Joshua M. Pahys, MD; Zeeshan M. Sardar, MD
11:16 - 11:19	2027 Annual Meeting Preview Venu M. Nemani, MD, PhD; Michelle C. Welborn, MD
11:19 - 11:22	2027 Annual Regional Courses Preview Martin Repko, MD, PhD
11:22 - 11:25	Acknowledgment of 2026 Awards & Scholarship Winners Selina C. Poon, MD
11:25 - 11:30	Introduction of the President Ferran Pellise, MD, PhD
11:30 - 11:50	Presidential Address Suken A. Shah

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Half-Day Course 2: Debate-Style Discussion: Different Approaches to Different Problems

Friday

October 9, 2026

Moderators

Ronald Lehman Jr, MD; Daniel J. Sucato, MD, MS

Pediatric Transition Debates
Are We Ready to Fully Adopt VBT for AIS?
13:45 - 13:50	Yes - Motion Preservations is Key Amer F. Samndani, MD
13:50 - 13:55	No - Fusion is King Tenner Guillaume, MD
13:55 - 14:02	Discussion
Pedicle Screw Placement in 2026
14:02 - 14:07	Freehand/Fluoro More Efficient Heiko Koller, MD, PhD
14:07 - 14:12	Enabling Technology is Here to Stay David L. Skaggs, MD, MMM
14:12 - 14:20	Discussion
Bracing Paradigm: Should the Goals Change?
14:20 - 14:25	Stay the Historical Course: Prevent Progression Kenny YH. Kwan, BMBCh(Oxon), FRCSEd
14:25 - 14:30	Permanent Improvement Should Be the Goal Michael B. Johnson, MD, PhD
14:30 - 14:37	Discussion
Transition Debates
Tethers are "Great", But What to Do When They Fail?
14:37 - 14:42	Peds: Revision Tether - Keep the Motion Peter O. Newton, MD
14:42 - 14:47	Peds/Adult: Do What You Should Have Done in the First Place - Fuse Them! Ronald Lehman Jr, MD
14:47 - 14:55	Discussion
AIS Vs. AdIS - When to Intervene?
14:55 - 15:00	Peds: The Earlier the Better Baron S. Lonner, MD
15:00 - 15:05	Adult: "Let Them Be Kids" - Wait Until They Become Young Adults! Joseph M. Lombardi, MD
15:05 - 15:12	Discussion
High Grade Sponydlolisthesis: Are the Considerations Different?
15:12 - 15:17	Peds: Grade 4 - Should We Reduce? Risks and Outcomes Qianyu Zhuang, MD
15:17 - 15:22	Adult: Grade 4 - This is a Different Animal (A/P vs. All Post) - Restore Sagittal Alignment Khaled M. Kebaish, MD
15:22 - 15:30	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 8: Adult Spinal Deformity III: Optimizing Patient Condition: The Game Changer

Friday

October 9, 2026

Moderators

Marc Khalife, MD, PhD, MS & Ferran Pellise, MD, PhD

13:45 - 13:49	Paper #105: Biological Age Predicts Short-Term Outcomes After Adult Spinal Deformity Surgery Ritvik Jillala, BS; Arjun Menta, BS; Patrick Kramer, MD; Jawad M. Khalifeh, MD; Liam Hughes, MD; Jacob Jo, MD; Daniel Lubelski, MD; Timothy Witham, MD; Tej Azad, MD
13:49 - 13:53	Paper #106: Surgical Correction of ASD Is Associated with Slower Epigenetic Age Acceleration Travis Kotzur, MD; Lane H. McCoy, BS; John OMalley, MD; Nicholas A. Pallotta, MD, MS; Munish C. Gupta, MD, MBA; Brian J. Neuman, MD
13:53 - 13:57	Paper #107: Insulin-like Growth Factor Outperforms Sarcopenia as a Predictor of Postoperative Recovery Alexander Upfill-Brown, MD, MS; Han Jo Kim, MD; Anthony Lewis, BS; Annika Bay, MD; Atahan Durbas, MD; Andrea Pezzi, MD; Mihir Dekhne, MD; David Foley, MD; Gregory Kazarian, MD; Christopher Yoo, BS; Chierika O Ukogu, MD; Zora Hahn, BS; Matthew E. Cunningham, MD, PhD; Francis Lovecchio, MD
13:57 - 14:06	Discussion
14:06 - 14:10	Paper #108: Osteosarcopenia of the Spine Drives Mechanical Complications After Thoracolumbar Adult Spine Deformity Operations David Chung, MD; Weston Wright, BS; Justin K. Scheer, MD; Alexander Tuchman, MD; Corey T. Walker, MD
14:10 - 14:14	Paper #109: Preoperative Musculoskeletal Burden Predicts 1-Year Junctional Complications After Adult Spinal Deformity Surgery Bassel G. Diebo, MD; Joseph E. Nassar, BS; Michael Farias, BS; Micheal Raad, MD; Feyza Achilova; Virginie Lafage, PhD; Renaud Lafage, MS; Richard Hostin, MD; Peter G. Passias, MD; Eric O. Klineberg, MD; Jeffrey Gum, MD; Han Jo Kim, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Themistocles S. Protopsaltis, MD; Kojo D. Hamilton, MD, FAANS; Justin S. Smith, MD, PhD; Munish C. Gupta, MD, MBA; Brett Rocos, MD, FRCS; Jeffrey Mullin, MD; Frank Schwab, MD; Christopher I. Shaffrey, MD; Stephen J. Lewis, MD, FRCS(C); Christopher P. Ames, MD; Lawrence G. Lenke, MD; Sang Hun Lee, MD, PhD; Khaled M. Kebaish, MD; Shay Bess, MD; Alan H. Daniels, MD; International Spine Study Group
14:14 - 14:18	Paper #110: Adult Spinal Deformity Surgery in Patients with Lower Extremity Weakness: Do Preoperative Neurologic Deficits Influence Outcomes? Scott Zuckerman, MD; Harsh Jain, MBBS; Byron F. Stephens, MD; Thomas Buell, MD; Nima Alan, MD; Sang Hun Lee, MD, PhD; David O. Okonkwo, MD, PhD; Stephen J. Lewis, MD, FRCS(C); Jeffrey Mullin, MD; Peter G. Passias, MD; Darryl Lau, MD; Anthony L. Mikula, MD; Jay D. Turner, MD, PhD; Joshua Bunch, MD; Brandon B. Carlson, MD; Michael P. Kelly, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Eric O. Klineberg, MD; Han Jo Kim, MD; Breton Line; Themistocles S. Protopsaltis, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Khaled M. Kebaish, MD; Paul Park, MD; Praveen V. Mummaneni, MD; Munish C. Gupta, MD, MBA; Jeffrey Gum, MD; Alan H. Daniels, MD; Bassel G. Diebo, MD; Richard Hostin, MD; Justin K. Scheer, MD; Lawrence G. Lenke, MD; Frank Schwab, MD; Christopher P. Ames, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Shay Bess, MD; International Spine Study Group
14:18 - 14:27	Discussion
14:27 - 14:31	Paper #111: Impact of Enhanced Recovery After Surgery (ERAS) Protocol on Postoperative Pain and Clinical Recovery in Adult Spinal Deformity Surgery Yu-Cheng Yao, MD; Jing-Yang Liou, MD, PhD; Hsin-Yi Wang, MD; Po-Hsin Chou, MD, PhD; Shih-Tien Wang, MD
14:31 - 14:35	Paper #112: Implications of Non-Tobacco Nicotine Use on Adult Spinal Deformity Surgery Shanthi Deivanayagam, BS; Kendyl Howell, BS; Bradley M. Rao, BS; Madeline Hasson, BS; Omkar Anaspure, BS; Ziad Hassan, BS; David Casper, MD; Amrit Khalsa, MD; Lawrence G. Lenke, MD; Andrew S. Zhang, MD
14:35 - 14:39	Paper #113: Utility of Chemical Anticoagulation After Adult Spinal Deformity Surgery: A Retrospective Cohort Study Bradley M. Rao, BS; Ziad Hassan, BS; Amanda M. Moser, MD, BA; Omkar Anaspure, BS; Madeline Hasson, BS; Tensae Assefa, MD; Nnaemeka Okorie, MD; David Casper, MD; Amrit Khalsa, MD; Lawrence G. Lenke, MD; Andrew S. Zhang, MD
14:39 - 14:48	Discussion
14:48 - 14:52	Paper #114: Diagnostic and Predictive Value of Upright–Supine Imaging for Treatment Selection in Degenerative Lumbar Spondylolisthesis - A Two-Year PROM Based Comparison with Flexion Extension Radiographs Tom Folkerts, MD; Julia Wimmer, MD; Anna-Maria Mielke, MD; Lukas Schonnagel, MD; Bruno Verna, MD; Pedro Augusto Rocha Torres, MD; Paul Koehli, MD; Jiaqi Zhu; Jennifer Shue, MS; Roland Duculan, MD; Andrew A. Sama, MD; Federico P. Girardi, MD; Frank P. Cammisa Jr, MD; Carol A. Mancuso, MD; Marco D. Burkhard, MD; Alexander P. Hughes, MD
14:52 - 14:56	Paper #115: More is better! Multicenter Analysis of Failure Rates and Risk Factors Between Bilateral Single and Multiple Pelvic Fixation in Adult Spinal Deformity Surgery Pawel P. Jankowski, MD; Paritash Tahmasebpour, MD; Spencer Matthews, MS; Christopher J. Kleck, MD; David C. Ou-Yang, MD; David W. Polly Jr, MD; Jiandong Hao, BS; Harsh Jain, MBBS; Jack Strobeck, BS; Aaron Hockley, MD; Robert K. Eastlack, MD; Benjamin D. Elder, MD, PhD; Sohaib Hashmi, MD; Scott Zuckerman, MD; Daniel M. Sciubba, MD; Peter G. Passias, MD
14:56 - 15:00	Paper #116: Comparison of Perioperative Outcomes and Frailty in Minimally Invasive and Open Surgery for Adult Spinal Deformity: A Multi-Center Analysis David D. Liu, MD; Jay Kumar, MD; Jang Yoon, MD, MS; Praveen V. Mummaneni, MD; Vivian P. Le, MPH; Dean Chou, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Adam S. Kanter, MD; David O. Okonkwo, MD, PhD; Paul Park, MD; Neel Anand, MD, Mch. Orth; Pierce D. Nunley, MD; Michael Y. Wang, MD; Jay D. Turner, MD, PhD; Richard G. Fessler, MD, PhD; Ricardo Fontes, MD, PhD; KaiMing G. Fu, MD, PhD; Andrew K. Chan, MD; Nima Alan, MD; Peter G. Passias, MD; Shay Bess, MD; Juan S. Uribe, MD; International Spine Study Group
15:00 - 15:09	Discussion
15:09 - 15:13	Paper #117: Early Postoperative Neurologic Course is the Primary Determinant of Long-Term Lower Extremity Motor Recovery After ASD Surgery Fthimnir Hassan, MPH; Lawrence G. Lenke, MD; Erik Lewerenz, BS; Virginie Lafage, PhD; Justin S. Smith, MD, PhD; Peter G. Passias, MD; Eric O. Klineberg, MD; Kojo D. Hamilton, MD, FAANS; Jeffrey Gum, MD; Michael P. Kelly, MD; Han Jo Kim, MD; Khaled M. Kebaish, MD; Alan H. Daniels, MD; Robert K. Eastlack, MD; Munish C. Gupta, MD, MBA; Gregory M. Mundis Jr, MD; Richard Hostin, MD; Juan S. Uribe, MD; Neel Anand, MD, Mch. Orth; Jay D. Turner, MD, PhD; Pierce D. Nunley, MD; Michael Y. Wang, MD; Adam S. Kanter, MD; Lee A. Tan, MD; Praveen V. Mummaneni, MD; Christopher I. Shaffrey, MD; Christopher P. Ames, MD; Shay Bess, MD; International Spine Study Group
15:13 - 15:17	Paper #118: Neurologic Deficit Recovery After Revision Pedicle Subtraction Osteotomy for Fixed Sagittal Imbalance in Previously Fused Adults and its Impact on Patient-Reported Outcomes Julio J. Jauregui, MD; Sapan Patel, BS; Hershil Patel, BS; Maksim A. Shlykov, MD, MS; Michael Kelly, MD; Rohit Kaul. Bhan, MD, MS; Camilo A. Molina, MD; Tomas Ries, MD; Laviel Fernandez, MD; Taryn E. LeRoy, MD; Keith H. Bridwell, MD; Munish C. Gupta, MD, MBA
15:17 - 15:21	Paper #119: Understanding Bilateral MEP Changes during Cord Level Spinal Deformity Surgery: Etiology, Significance and Response Brian J. Neuman, MD; Stephen J. Lewis, MD, FRCS(C); Lawrence G. Lenke, MD; Ferran Pellise, MD, PhD; Ahmet Alanay, MD; Justin S. Smith, MD, PhD; Yong Qiu, PhD; Nasir A. Quraishi, PhD, FRCS; Saumyajit Basu, MS (Ortho), DNB (Ortho), FRCS (Ed); Go Yoshida, MD, PhD; Randolph Gray, MBBS, FRCS; Zeeshan M. Sardar, MD; Michael P. Kelly, MD
15:21 - 15:30	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 9A: Quality/Safety/Value/Complications

Friday

October 9, 2026

Moderators

Jennifer M. Bauer, MD, MS & Sleiman Haddad

15:50 - 15:54	Paper #120: Development of an Intraoperative Assessment Tool for Predicting Critical Care Transfer Following Major Posterior Spine Surgery Devika Shenoy, BS; Katelyn E. Parsons, BS; Evelyn Hunter, BS; Andrew Lopolito, BS; HuiJie Lee, PhD; Lexie Z. Yang, MB; Bo Hu, PhD; Brett Rocos, MD, FRCS
15:54 - 15:58	Paper #121: Efficacy of Oral Silodosin for Preventing Postoperative Urinary Retention (POUR) Following Elective Spine Surgery: A Single-Blind Randomized Controlled Trial Vidyadhara Srinivasa, MD, MS; Dinesh Iyer, MS; ABHISHEK SONI, MD, MS; Balamurugan Thirugnanam, MS,
15:58 - 16:02	Paper #122: Delayed Extubation following Corrective Surgery for Severe Kyphoscoliosis: What are the Roles of Pulmonary Arterial Hypertension and Chronic Respiratory Failure? Zhen Liu, PhD; Xiaodong Qin, PhD; Saihu Mao, MD; Xiaokang Wang, MD; Yong Qiu, PhD; Zezhang Zhu, MD, PhD
16:02 - 16:11	Discussion
16:11 - 16:15	Paper #123: Transitioning from Preoperative Control to Postoperative Risk: Loss of Postoperative Glycemic Control Increases Pseudoarthrosis After Adult Spinal Deformity Surgery Travis Kotzur, MD; Lane H. McCoy, BS; Alex Miller, MD; Brian J. Neuman, MD
16:15 - 16:19	Paper #124: Recombinant Human Bone Morphogenetic Protein-2 (BMP) Reduces Long-Term Cost by Decreasing Revision Surgery in Adult Spinal Deformity David D. Liu, MD; Shay Bess, MD; Breton Line; Christopher P. Ames, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Jeffrey Gum, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Eric O. Klineberg, MD; Alan H. Daniels, MD; Munish C. Gupta, MD, MBA; Kojo D. Hamilton, MD, FAANS; Richard Hostin, MD; Praveen V. Mummaneni, MD; Pierce D. Nunley, MD; David O. Okonkwo, MD, PhD; Michael P. Kelly, MD; Peter G. Passias, MD; Themistocles S. Protopsaltis, MD; Khaled M. Kebaish, MD; Han Jo Kim, MD; Frank Schwab, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; International Spine Study Group
16:19 - 16:23	Paper #125: Does Osseointegrative Pelvic Fixation Eliminate Traditional Pelvic Fixation Loosening? Obiajulu Agha, MD; Bahar Shahidi, PhD; Gautham Prabhakar, MD; Timothy Choi, MD; Gregory M. Mundis Jr, MD; Robert K. Eastlack, MD
16:23 - 16:32	Discussion
16:32 - 16:36	Paper #126: Evolution of Minimally Invasive Adult Spinal Deformity Surgery Over Time: A Multi-Center Study Jay Kumar, MD; David D. Liu, MD; Jang Yoon, MD, MS; Dean Chou, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Adam S. Kanter, MD; David O. Okonkwo, MD, PhD; Paul Park, MD; Neel Anand, MD, Mch. Orth; Pierce D. Nunley, MD; Juan S. Uribe, MD; Jay D. Turner, MD, PhD; Michael Y. Wang, MD; Richard G. Fessler, MD, PhD; Ricardo Fontes, MD, PhD; KaiMing G. Fu, MD, PhD; Andrew K. Chan, MD; Nima Alan, MD; Vivian P. Le, MPH; Peter G. Passias, MD; Shay Bess, MD; Praveen V. Mummaneni, MD; International Spine Study Group
16:36 - 16:40	Paper #127: Prophylactic Transvertebral Spinal Cord Transposition Reduces Neurological Complications in Severe Kyphoscoliosis with Type 3 Cord Morphology Yutong Dai, MD; Ben Long Shi, MD; Saihu Mao, MD; Yong Qiu, PhD; Zezhang Zhu, MD, PhD
16:40 - 16:44	Paper #128: Long-Term Neurological Outcomes Following Significant Intraoperative Neuromonitoring Alarms: A Longitudinal Study of 115 Patients with Severe Spinal Deformities Tianyuan Zhang, MD, PhD; Junlin Yang, MD, PhD; Yaolong Deng, MD
16:44 - 16:53	Discussion
16:53 - 16:57	Paper #129: Current Intra-Operative Neuromonitoring Protocols Fail to Reliably Detect New Neurological Deficits in 3COs Performed Below the Conus Stephen J. Lewis, MD, FRCS(C); Ran Ankory, MD; So Kato, MD, PhD; Justin S. Smith, MD, PhD; Michael P. Kelly, MD; Brian J. Neuman, MD; Munish C. Gupta, MD, MBA; Christopher J. Nielsen, MD; Yukihiro Matsuyama, MD, PhD; Yong Qiu, PhD; Lawrence G. Lenke, MD
16:57 - 17:01	Paper #130: Machine Learning (ML) in Intraoperative Neuromonitoring (IONM): Updated Model Integrating Hemodynamic Data Detects Changes 35 Minutes Earlier Than Traditional IONM Surveillance Varun Arvind, MD, PhD; Anil Mendiratta, MD; Mehdi Elfilali, BA; Madeline C. Monness, BSA; Erik Williams, BS; Miles Bomback, BA, MPH; Michael W. Brown, BS; Alexander Park, BS; Omar Taha, BS; Matthew Weintraub, BS; Michael G. Vitale, MD, MPH
17:01 - 17:05	Paper #131: Influence of Baseline IONM Data Quality on Neuromonitoring Performance and Surgical Actions in Pediatric Spinal Deformity Surgery Christopher K. Bozorgmehr, BS; Leah Rakers, MBS, CNIM; Scott John Luhmann, MD
17:05 - 17:14	Discussion
17:14 - 17:18	Paper #132: Free hand vs navigation guided pedicle screw insertion in scoliosis - an analysis of 5000 screws using intra operative low dose CT scan Ahmad Hussien, MD; Sai Balasubramanian, MBBS, MS; Paul Cool, FRCS; Jayesh Trivedi, FRCS; Neil T. Davidson, MBBS, FRCS; Sudarshan Munigangaiah, FRCS
17:18 - 17:22	Paper #134: 10-Year Review of 24,140 Freehand Pedicle Screws Placed in the Thoracic, Lumbar and Sacral Spine for Pediatric and Adult Spinal Deformity: Is This Still a Relevant Technique? Meredith Luhmann, BS; Amrit Singh, MPH; Erik Lewerenz, BS; Lawrence G. Lenke, MD
17:22 - 17:26	Paper #135: How Low Can We Go? Can We Further Reduce Radiation Exposure During Scoliosis Radiographic Examination? Rachelle Imbeault; Marjolaine Roy-Beaudry; Justin Dufresne; Sylvain Deschenes, PhD; Stefan Parent, MD, PhD
17:26 - 17:35	Discussion
17:35 - 17:39	Paper #136: Implant Density and Deformity Angular Ratio Predict Risk of Complications in Three-Column Osteotomies Travis S. CreveCoeur, MD; Alexander J. Schupper, MD; Amer F. Samdani, MD; Joshua M. Pahys, MD; Terrence G. Ishmael, MBBS; Benjamin A. Schmidt, BA; Joshua McCalister-Afflick, BS; Emily Nice, BS; Steven W. Hwang, MD
17:39 - 17:43	Paper #137: Rod Diameter, Material, and Texture Influence Screw-Rod Fixation Strength in Spinopelvic Construct Cale J. Hendricks, BS; Samuel Hendricks, BS; David W. Polly Jr, MD; Arin M. Ellingson, PhD
17:43 - 17:47	Paper #138: Time-to-Failure Analysis of Implant Constructs in Severe Spinal Deformity Surgery: Seven-Year Outcomes from a West African Cohort Kwadwo Poku Yankey, MD; Derrick Nyantakyi Owusu, MS; Arthur Sackeyfio, MD; Sarah Kyerewaa. Obiri, BS; Liudmila Gross, MD; Irene Adorkor. Wulff, MD; Francis Addai, MD; Benjamin Hayfron. Blackson, MD; Oheneba BoachieAdjei, MD
17:47 - 17:51	Paper #139: Do Patient-Specific Precontoured Rods Justify a Ten-Fold Increase in Cost Compared with Manual Contouring in Adolescent Spinal Deformity Surgery? Matthew Miyasaka, AB; Kingsley Ogelle, BS; Alexander Kucherina, BS; Mina Eskandar, MS, BS; Garima Paul, MD; Constance Maglaras, PhD; Themistocles S. Protopsaltis, MD; Juan Carlos Rodriguez-Olaverri, MD
17:51 - 18:00	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 9B: Early Onset Scoliosis & Kyphosis

Friday

October 9, 2026

Moderators

Moderator TBA & Alekos A. Theologis, MD

15:50 - 15:54	Paper #140: Three Year Results of a Randomized Controlled Trial Comparing Two Novel Distraction-Based Devices for Neuromuscular Early Onset Scoliosis Justin VC. Lemans, MD, PhD; Casper S. Tabeling, MD; Hilde W. Stempels; Agnita Stadhouder, MD; Jeroen Renkens, MD; Lotfi Miladi, MD; Tom PC. Schlosser, MD, PhD; René M. Castelein, MD, PhD; Moyo C. Kruyt, MD, PhD
15:54 - 15:58	Paper #141: Impact of Age at Growing Rod Insertion on Final T1-T12 Spinal Height Blake K. Montgomery, MD; Patrick J. Cahill, MD; Scott John. Luhmann, MD; Jason Brett. Anari, MD; Simon Y. Tang, PhD; Pediatric Spine Study Group; Michael J. Heffernan, MD; Brett Lullo, MD
15:58 - 16:02	Paper #142: Physical Function of Early-Onset Scoliosis: An International Multisite Prospective Study Karina Amani. Zapata, PhD, DPT; Tiffany Thompson, BS; Terrence G. Ishmael, MBBS; Arthur Sackeyfio, MD; Kwadwo Poku Yankey, MD; Michelle C. Welborn, MD; Benjamin A. Schmidt, BA; Amareesa Robinson, BS; Sarah Kyerewaa. Obiri, BS; Hayley Shelton; Joshua McCalister-Afflick, BS; Pediatric Spine Study Group; Amy Lynn. McIntosh, MD
16:02 - 16:11	Discussion
16:11 - 16:15	Paper #143: Proximal Junctional Kyphosis in Distraction-Based Growth-Friendly Treatment: Definition, Risk Factors, and Timeline Ataberk Beydemir, MD; Rafik Ramazanov, MD; Mehmet Berktas, MD; Mehmet Ayvaz, MD; Gokhan Halil. Demirkiran, MD; Muharrem Yazici, MD
16:15 - 16:19	Paper #144: Crankshaft Phenomenon and Its Related Factors Following Traditional Growing Rod Surgery in Early-Onset Scoliosis: A Computed Tomography-based Analysis Hong Jin Kim, MD, PhD; Hyung Rae Lee, MD; Subin Lim, MD; Jae Hyuk Yang, MD, PhD; Seung Woo Suh, MD, PhD
16:19 - 16:23	Paper #145: Implant Survival after Graduation by “Observation” in Patients Treated with Growing Rods: A 10-year Follow-up Study Ana Hurtado, MD; Gloria Talavera, MD; Lucia Moreno-Manzanaro, BS; Irene Zarcos, MD; Jose Miguel Sanchez-Marquez, MD, PhD; Nicomedes FernandezBaillo, MD; Javier Pizones, MD, PhD
16:23 - 16:32	Discussion
16:32 - 16:36	Paper #146: Staged Growing-Rod Implantation Is Associated with Lower Rates of Reoperation-Requiring Complications in Extremely Severe Early-Onset Scoliosis Kota Watanabe, MD, PhD; Satoshi Suzuki, MD, PhD; Kazuki Takeda, MD, PhD; Takahito Iga, MD, PhD; Toshiki Okubo, MD, PhD; Masahiro Ozaki, MD, PhD; Narihito Nagoshi, MD, PhD; Morio Matsumoto, MD, PhD; Masaya Nakamura, MD, PhD
16:36 - 16:40	Paper #147: Growth Guidance or Posterior Based Distraction in EOS: Can the Modified Clavien-Dindo-Sink Classification System Tell Them Apart? Rayyan Abid; Jason Brett. Anari, MD; Christina K. Hardesty, MD; Katerina M. Kourpas, AB; Stone R. Streeter, BS; Pediatric Spine Study Group
16:40 - 16:44	Paper #148: Revision Surgery for Deep Surgical Site Infection Differs by Instrumentation Type but Is Not Associated with Inferior Patient-Reported Outcomes in Early-Onset Scoliosis Antti Juhani. Saarinen, MD, PhD; John T. Smith, MD; Paul D. Sponseller, MD; Amer F. Samdani, MD; John (Jack) M. Flynn, MD; Michael G. Vitale, MD, MPH; Pediatric Spine Study Group; Ilkka J. Helenius, MD, PhD
16:44 - 16:53	Discussion
16:53 - 16:57	Paper #149: Radiographic and Functional Outcomes for Sagittal Alignment in Growth Rod Graduates: Are We Able to Rebuild it? Anuj Gupta, MD; Brett Shannon, MD; Benjamin Crain, MD; Petya Yorgova, MS; Paul D. Sponseller, MD; Lindsay M. Andras, MD; Pediatric Spine Study Group; Suken A. Shah, MD
16:57 - 17:01	Paper #150: Effect of Distraction-based Growth Friendly Implants on Spinopelvic Parameters and Health-Related Quality of Life after Growth-Friendly Spine Surgery in EOS Patients at a Minimum of 5 Years Follow-up Todd F. Ritzman, MD; Dominick A. Tuason, MD; Jaime A. Gomez, MD; Patrick J. Cahill, MD; Mark A. Erickson, MD; Sumeet Garg, MD; Scott John. Luhmann, MD; Paul D. Sponseller, MD; Michael G. Vitale, MD, MPH; Pediatric Spine Study Group
17:01 - 17:05	Paper #151: Long-term Outcomes in Adulthood Following Traditional Growing Rods for Early-Onset Scoliosis Masaaki Ito, MD, PhD; Teppei Suzuki, MD, PhD; Koki Uno, MD, PhD
17:05 - 17:14	Discussion
17:14 - 17:18	Paper #152: Congenital Scoliosis: An Update to Its Natural History and Clinical Approach Mihir Sharma, BS; Alexander Bhatt, MS; Jason Brenner, BS; Ashlyn Callan, MS; Priya Singh, MD; Edina Gjonbalaj, BS; Pediatric Spine Study Group; Jacob F. Schulz, MD; Leila Mehraban Alvandi, PhD; Jaime A. Gomez, MD
17:18 - 17:22	Paper #153: The Interesting Morphological Changes of Adjacent Vertebra after Posterior Hemivertebrectomy with Unilateral Short Segment Fusion for Long-Term Follow-up in Children Xuhong Xue, MD, PhD; Kai Li, MD; Sheng Zhao, MD
17:22 - 17:26	Paper #154: Intraoperative Neuromonitoring Alerts During Surgery for Congenital Spinal Deformity: Prevalence, Risk Factors, and Outcomes in a Prospective Study of 100 Patients Anuj Gupta, MD; Brett Shannon, MD; Petya Yorgova, MS; Paul D. Sponseller, MD; Oheneba BoachieAdjei, MD; Jennifer M. Bauer, MD, MS; Burt Yaszay, MD; Purnendu Gupta, MD; Kwadwo Poku Yankey, MD; Munish C. Gupta, MD, MBA; Lawrence G. Lenke, MD; Peter O. Newton, MD; Michael P. Kelly, MD; Amer F. Samdani, MD; Joshua M. Pahys, MD; Daniel J. Sucato, MD, MS; David B. Bumpass, MD; Suken A. Shah, MD
17:26 - 17:35	Discussion
17:35 - 17:39	Paper #155: Spinopelvic Alignment Parameters using the T4L1PA Hip Axis Predicts PJK and Reoperation in Scheuermann’s Kyphosis Correction Brandon A. Ramo, MD; Jesse Patton. Robinette, MD; Anna McClung-Booth; Matthew Siebert, MD; Megan Johnson, MD
17:39 - 17:43	Paper #156: Aiming to Stop More Proximally When Determining Distal Fusion Level According to Stable Sagittal Vertebra in Scheuermann’s Kyphosis. Comparison of Two X-ray Methods: Lateral Traction Under General Anesthesia vs Standing Full-spine Lateral X-ray Hamisi Mwarindano Mraja, MD; Ibrahim Dag, MD; Sepehr Asadollahmonfared, MD; Bugra Ayaz, MD; Ahmet Hamdi Olcar, MD; Burak Abay, MD; Mehmet Zamanoglu, MD; Ilyas Dolas, MD; Sinan Kahraman, MD; Meric Enercan, MD; Selhan Karadereler, MD; Azmi Hamzaoglu, MD
17:43 - 17:47	Paper #157: Operative Morbidity and Complication Profiles in Pediatric Versus Adult Scheuermann’s Kyphosis Alan H. Daniels, MD; Amer F. Samdani, MD; Michael Farias, BS; Joseph E. Nassar, BS; David D. Liu, MD; Bassel G. Diebo, MD; Peter O. Newton, MD; Feyza Achilova; Lawrence G. Lenke, MD; Jeffrey Gum, MD; Kojo D. Hamilton, MD, FAANS; Justin S. Smith, MD, PhD; Christopher I. Shaffrey, MD; Shay Bess, MD; Baron S. Lonner, MD; Harms Study Group; International Spine Study Group
17:47 - 17:51	Paper #158: Surgical Treatment of Post-tuberculosis Kyphosis with Ossification of Ligamentum Flavum: Identification of the Primary Causes of Neurological Deficits Jiahao Zhang, MD; Jiale Zhu, MS; Yan Zeng, MD
17:51 - 18:00	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 10: Adolescent Idiopathic Scoliosis III

Saturday

October 10, 2026

Moderators

Moderator TBA & Reuben CC Soh, MBBS, FRCS

08:00 - 08:04	Paper #159: Predicting the Benefit of Bracing for Adolescent Idiopathic Scoliosis Using Sanders Maturity Stages Lori A. Dolan, PhD; Stuart Leslie Weinstein, MD; Donna J. Oeffinger, PhD; Richard Michael Schwend, MD; BrAIST Study Group
08:04 - 08:08	Paper #160: In-brace Correction May Gate the Effect of Wear Time on Curve Regression in AIS Bracing Tomoyuki Asada, MD, PhD; Toshiaki Kotani, MD, PhD; Tsuyoshi Sakuma, MD, PhD; Yasushi Iijima, MD, PhD; Yusuke Setojima, MD; Kotaro Sakashita, MD; Yosuke Ogata, MD; Shohei Minami, MD, PhD; Seiji Ohtori, MD; Yasuhiro Homma, MD, PhD
08:08 - 08:12	Paper #161: In-Brace Correction, Wear-time Compliance, and Outcomes in TLSO Bracing for Adolescent Idiopathic Scoliosis Donna J. Oeffinger, PhD; Shelby White, PhD; Vincent Prusick, MD; Vishwas R. Talwalkar, MD
08:12 - 08:21	Discussion
08:21 - 08:25	Paper #162: Radiographic and Pulmonary Function Outcomes in Lenke 4-6 (TL/L-Dominant) Adolescent Idiopathic Scoliosis: Relationship to Diaphragm Intrusion Zaid Elsabbagh, BS; William ElNemer, BS; Eric Mao, BA; Peter G. Gabos, MD; Gregory Redding, MD; Baron S. Lonner, MD; Firoz Miyanji, MD, FRCS(C); Peter O. Newton, MD; Paul D. Sponseller, MD
08:25 - 08:29	Paper #163: Contextualizing Chest Radiograph–Based Pulmonary Function Estimation in Scoliosis Using Multimodal Deep Learning Beomsu Kim, MD; Wounsuk Rhee, MD; Ihnseok Chae, MD; Jeuk Lee, MD; Sung Taeck Kim, MD; Bong-Soon Chang, MD, PhD; Sam Yeol Chang, MD; Hyoungmin Kim, MD
08:29 - 08:33	Paper #164: Postoperative Anemia Predisposes to Serious Complications Following Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis Josephine R. Coury, MD; Fthimnir Hassan, MPH; Mehdi Elfilali, BA; Alexander Park, BS; Mia OConnell, BS; Michael W. Brown, BS; Justin L. Reyes, MS; Nicholas Laskay, MD; Evan Joiner, MD; Lawal A. Labaran, MD; Matthew Elliot. Simhon, MD; Zeeshan M. Sardar, MD; Benjamin D. Roye, MD; Michael G. Vitale, MD, MPH; Lawrence G. Lenke, MD
08:33 - 08:42	Discussion
08:42 - 08:46	Paper #165: Biomechanical analysis of Ponte-osteotomies vs No Osteotomies in Adolescent Idiopathic Scoliosis (AIS) – Radiographic Analysis from Randomized Clinical Trial Matti Ahonen, MD, PhD; Johanna Syvänen, MD, PhD; Linda Helenius, MD, PhD; Jenni Jalkanen, MD, PhD; Aarno Nietosvaara, MD, PhD; Antti Juhani. Saarinen, MD, PhD; Ilkka J. Helenius, MD, PhD
08:46 - 08:50	Paper #166: Determining the Optimal Extent of Rib Resection during Thoracoplasty with Respect to Pulmonary Function in Adolescent Idiopathic Scoliosis Hong Jin Kim, MD, PhD; Hyung Rae Lee, MD; Jae Hyuk Yang, MD, PhD; Subin Lim, MD; Seung Woo Suh, MD, PhD
08:50 - 08:54	Paper #167: Effectiveness of Dual Rod Translation in Thoracic Kyphosis Restoration for AIS: A Comparison with the Conventional Technique Yusuke Hori, MD, PhD; Takashi Namikawa, MD, PhD; Masaki Kawamura, MD; Brando Guarrera, MD; Akira Matsumura, MD, PhD
08:54 - 09:03	Discussion
09:03 - 09:07	Paper #168: Manual Rod Contouring is Non-Inferior to Patient-Specific Rods for Achieving Goal Alignment in Adolescent Idiopathic Scoliosis Conner Paez, MD; Julienne Ryland, DO; Alexandria Rundell, BS; Richard P. Steiner, PhD; Todd F. Ritzman, MD; Lorena Floccari, MD
09:07 - 09:11	Paper #169: Patient-specific Rod Planning is Often Too Optimistic in Hypokyphotic Adolescent Idiopathic Scoliosis Patients Aren Joe Bizdikian, MD, MS; Jean-Charles Serero, MD; Anne Laure Simon, MD, PhD; Brice Ilharreborde, MD, PhD
09:11 - 09:15	Paper #170: Does Preoperative Pelvic Incidence Influence Postoperative Sagittal Balance? Evaluation of Standardized Rod Curvature in AIS Surgery Katsuhisa Yamada, MD, PhD; Akira Fukushima, MD; Soya Miura, MD; Terufumi Kokabu, MD; Takashi Ohnishi, MD, PhD; Hiroyuki Tachi, MD; Hideki Sudo, MD, PhD
09:15 - 09:24	Discussion
09:24 - 09:28	Paper #171: Utilizing Intrathecal Morphine in Rapid Recovery Pathway Protocol for Economic Benefit Vishal Sarwahi, MD; Anabelle Cohen, BS; Alexander Morledge, BA; Katherine Eigo, BS; Effat Rahman, BS; Nora Donahue, BS; Sayyida Hasan, BS; Cole Dutton, BS; Peter Boucas, BS; Keshin Visahan, BS; Benita Liao, MD; Yungtai Lo, PhD; Jon-Paul P. DiMauro, MD; Terry D. Amaral, MD
09:28 - 09:32	Paper #172: Radiographic-Cosmetic Discrepancy in Adolescent Idiopathic Scoliosis: Impact of Extremely Low BMI Zhen Liu, MD, PhD
09:32 - 09:36	Paper #173: Revisions for Pseudoarthrosis in Adolescent Idiopathic Scoliosis: Strategies and Outcomes from a Multicenter Registry Alex Ryan La Poche, BS; Arun R. Hariharan, MD, MS; Amit Jain, MD, MBA; Amer F. Samdani, MD; John S. Vorhies, MD; Peter G. Gabos, MD; Peter O. Newton, MD; Burt Yaszay, MD; Craig R. Louer Jr, MD; Harms Study Group
09:36 - 09:45	Discussion
09:45 - 09:55	Presentation of the Hibbs, Moe & Goldstein Awards Kariman Abelin Genevois, MD, PhD; W.G. Stuart Mackenzie, MD
09:55 - 10:05	Transfer of the Presidency Introduction Suken A. Shah, MD
10:05 - 10:10	Transfer of the Presidency Speech Ferran Pellise, MD, PhD

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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Abstract Session 11: Miscellaneous & Cervical

Saturday

October 10, 2026

Moderators

Yong Hai, MD & Kedar P. Padhye, MD

10:30 - 10:34	Paper #174: Influence of Cervical Range of Motion and Dynamic Cervical Sagittal Vertical Axis on Distal Junctional Kyphosis Following Adult Cervical Deformity Surgery Tej Azad, MD; Ahmed Sulieman, MD; Virginie Lafage, PhD; Robert K. Eastlack, MD; Jeffrey Gum, MD; Munish C. Gupta, MD, MBA; Richard Hostin, MD; Michael P. Kelly, MD; Han Jo Kim, MD; Eric O. Klineberg, MD; Darryl Lau, MD; Gregory M. Mundis Jr, MD; Peter G. Passias, MD; Paul Park, MD; Frank Schwab, MD; Themistocles S. Protopsaltis, MD; Christopher P. Ames, MD; Shay Bess, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Khaled M. Kebaish, MD; Sang Hun Lee, MD, PhD; International Spine Study Group
10:34 - 10:38	Paper #175: How Reliable is Intraoperative Neurophysiological Monitoring for Detecting Postoperative Deficits During Cervical Spine Surgery? Jacob Okulewicz, BS; Justin L. Reyes, MS; James YonHan. Chen, BA; Thomas Hunt, BA; Demetrius Bryson, BS; Shonik Ganjoo, BS; Hamzah Abbas, BS; Kenji Kaproth, BS; Joseph M. Lombardi, MD; Ronald Lehman Jr, MD; Daniel Riew, MD; Zeeshan M. Sardar, MD
10:38 - 10:42	Paper #176: Does Preoperative Myelopathy Portend Worse Outcomes After Cervical Deformity Surgery? Scott Zuckerman, MD; Advith Sarikonda, BS, BA; Byron F. Stephens, MD; Thomas Buell, MD; Nima Alan, MD; Sang Hun Lee, MD, PhD; David O. Okonkwo, MD, PhD; Stephen J. Lewis, MD, FRCS(C); Jeffrey Mullin, MD; Peter G. Passias, MD; Darryl Lau, MD; Anthony L. Mikula, MD; Jay D. Turner, MD, PhD; Joshua Bunch, MD; Brandon B. Carlson, MD; Michael P. Kelly, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Eric O. Klineberg, MD; Han Jo Kim, MD; Themistocles S. Protopsaltis, MD; Robert K. Eastlack, MD; Gregory M. Mundis Jr, MD; Daniel Riew, MD; Khaled M. Kebaish, MD; Paul Park, MD; Praveen V. Mummaneni, MD; Munish C. Gupta, MD, MBA; Jeffrey Gum, MD; Alan H. Daniels, MD; Bassel G. Diebo, MD; Richard Hostin, MD; Justin K. Scheer, MD; Lawrence G. Lenke, MD; Frank Schwab, MD; Christopher P. Ames, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Shay Bess, MD; International Spine Study Group
10:42 - 10:51	Discussion
10:51 - 10:55	Paper #177: Pelvic Tilt Modifies the Effect of Cervicothoracic Kyphosis Correction on T1 Slope After Cervical Deformity Surgery Tej Azad, MD; Ahmed Sulieman, MD; Virginie Lafage, PhD; Robert K. Eastlack, MD; Jeffrey Gum, MD; Munish C. Gupta, MD, MBA; Richard Hostin, MD; Michael P. Kelly, MD; Han Jo Kim, MD; Eric O. Klineberg, MD; Darryl Lau, MD; Gregory M. Mundis Jr, MD; Peter G. Passias, MD; Paul Park, MD; Frank Schwab, MD; Themistocles S. Protopsaltis, MD; Scott Zuckerman, MD; Shay Bess, MD; Christopher I. Shaffrey, MD; Justin S. Smith, MD, PhD; Christopher P. Ames, MD; Khaled M. Kebaish, MD; Sang Hun Lee, MD, PhD; International Spine Study Group
10:55 - 10:59	Paper #178: Is the Addition of Anterior Cervical Corpectomy Superior to Anterior Cervical Discectomy and Fusion Only for the Correction of Cervical Focal Kyphosis? Thomas Hunt, BA; Justin L. Reyes, MS; James YonHan. Chen, BA; Jacob Okulewicz, BS; Demetrius Bryson, BS; Shonik Ganjoo, BS; Hamzah Abbas, BS; Kenji Kaproth, BS; Joseph M. Lombardi, MD; Ronald Lehman Jr, MD; Daniel Riew, MD; Zeeshan M. Sardar, MD
10:59 - 11:03	Paper #179: Cervical Pedicle Screws are not the Safest Lateral Mass Screws are Not the Best Fixation. What about Cervical Pedicle Inlet? Mahmoud AbuAlkebash, MD; Jeffrey Gum, MD; Steven D. Glassman, MD; Haseeb Tariq, BS; Leah Yacat Carreon, MD
11:03 - 11:12	Discussion
11:12 - 11:16	Paper #180: The Influence of Halo-Gravity and Halo-Pelvic Traction on Osteotomy Grades in Severe Spinal Deformities: A Retrospective Study Based on Predictive Modeling Zifang Huang, MD, PhD; Junlin Yang, MD, PhD; Lei He, MD, PhD; Pan Zhou, PhD
11:16 - 11:20	Paper #181: Safety and Efficacy of One-Staged Spine-Shortening by Using Posterior Vertebral Column Resection for Severe Spinal Deformity Associated with Multiple Spinal Cord Malformation Junlin Yang, MD, PhD; Zifang Huang, MD, PhD; Pan Zhou, PhD; Lei He, MD, PhD
11:20 - 11:24	Paper #182: Beyond Cord Compression: Instability is a major driver for neurological deficit in Active Thoracic Spinal Tuberculosis Ajoy Prasad Shetty Tonse, MS; Shanmuganathan Rajasekaran, MD, PhD, FRCSA, MCh; Harikrishna Ramasamy Raghuraj, MS
11:24 - 11:33	Discussion
11:33 - 11:37	Paper #183: Does Surgical Approach Affect Reoperation Rate in Surgical Treatment of L4-5 Degenerative Spondylolisthesis? Pooria Salari, MD; Richard N. Chang, PhD; Jessica E. Harris, MS; Kathryn E. Royse, PhD; Harsimran S. Brara, MD; Elizabeth P. Norheim, MD; Akasha I. Barreto Vega, MS; Jacob H. Fennessy, MD
11:37 - 11:41	Paper #184: Sagittal Spinal Shape Remodeling and Inflection Point Migration After Anterior Versus Posterior Short-Segment Lumbar Fusion Erh Ti Ernest Lin, MD; Yi Hsun Huang, MD; Jyun Hong Kuan, MD; Ben Long Shi, MD; Yi Chin Fong, MD, PhD; Yong Qiu, PhD; Yuan Shun Lo, MD, PhD
11:41 - 11:45	Paper #185: Prevalence of Severe Sagittal Malalignment in Patients Undergoing Short-Segment Lumbar Fusion Michael Farias, BS; Joseph E. Nassar, BS; Manjot Singh, BS; Alex Hernandez, BS; Zvipo Chisango, BS; Gabriel Gonzalez, BS; Catherine Becker Hurley, MS; John Czerwein, MD; Bassel G. Diebo, MD; Alan H. Daniels, MD
11:45 - 11:54	Discussion
11:54 - 11:58	Paper #186: Surgeon Achievement of Computer-Assisted Planning Targets in Lumbar Fusion Surgery: A Learning Curve Analysis Catherine Becker Hurley, MS; Michael Farias, BS; Feyza Achilova; Gabriel Gonzalez, BS; Nicolas Carayannopoulos, BS; John Czerwein, MD; Dina Kaplan, BS; Joseph E. Nassar, BS; Bassel G. Diebo, MD; Alan H. Daniels, MD
11:58 - 12:02	Paper #187: Patient-Reported Outcomes in Pediatric Spondylolysis Samantha Snyder, BS; Vivien Chan, MD, MS; Sonja Kleven; James Caruso, MD; Kenneth D. Illingworth, MD; David L. Skaggs, MD, MMM
12:02 - 12:06	Paper #188: Back in the Game: High Return-to-Sport Following Direct Pars Repair in Young Patients Sydney Thai, BS; Krystell E Ceballos Alvarez, BS; Emmanuel N. Menga, MD; Paul D. Sponseller, MD; Amit Jain, MD, MBA
12:06 - 12:15	Discussion

§ = Hibbs Award Nominee – Best Clinical Paper; † = Hibbs Award Nominee – Best Basic Science/Translational Science Paper;
‡ = SRS Funded Research Grant

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