1. State of the Art Review

   • Sig Berven
   • Allen Carl

   Editorial 30 December 2019 Pages: 381 - 381

2. Marc A. Asher 1936–2019

   • Douglas Burton

   Obituary 30 December 2019 Pages: 382 - 383

3. Respects to Yves Cotrel 1925–2019

   Announcement 30 December 2019 Pages: 384 - 385

4. Radiation in Spine Deformity: State-of-the-Art Reviews

   • A. Noelle Larson
   • Beth A. Schueler
   • Jean Dubousset

   State of art Review 30 December 2019 Pages: 386 - 394

5. Halo Gravity Traction for Severe Pediatric Spinal Deformity: A Clinical Concepts Review

   • Amy L. McIntosh
   • Brandon S. Ramo
   • Charles E. Johnston

   Review article 30 December 2019 Pages: 395 - 403

6. Biomechanical Analysis of Wide Posterior Releases Compared With Inferior Facetectomy and Discectomy in the Thoracolumbar and Lumbar Spine

   • Bryan Rynearson
   • Rahul Ramanathan
   • Patrick Bosch

   Biomechanics 30 December 2019 Pages: 404 - 409

7. Risk Factors for Early Infection in Pediatric Spinal Deformity Surgery: A Multivariate Analysis

   • Jerry Y. Du
   • Connie Poe-Kochert
   • R. Justin Mistovich

   Case Series 30 December 2019 Pages: 410 - 416

8. Minimum 20-Year Health-Related Quality of Life and Surgical Rates After the Treatment of Adolescent Idiopathic Scoliosis

   • A. Noelle Larson
   • Fady Baky
   • Michael J. Yaszemski

   OriginalPaper 30 December 2019 Pages: 417 - 427

9. Delay to Surgery Greater Than 6 Months Leads to Substantial Deformity Progression and Increased Intervention in Immature Adolescent Idiopathic Scoliosis (AIS) Patients: A Retrospective Cohort Study

   • Brandon Ramo
   • Dong-Phuong Tran
   • Sumeet Garg

   OriginalPaper 30 December 2019 Pages: 428 - 435

10. Quantifying Anterior Chest Wall Deformity in Adolescent Idiopathic Scoliosis: Correlation With Other Deformity Measures and Effects of Anterior Thoracoscopic Scoliosis Surgery

    • J. P. Little
    • T. J. Loch-Wilkinson
    • G. N. Askin

    OriginalPaper 30 December 2019 Pages: 436 - 444

11. A Novel Posterior Rod-Link-Reducer System Provides Safer, Easier, and Better Correction of Severe Scoliosis

    • Hong Zhang
    • Daniel J. Sucato

    OriginalPaper 30 December 2019 Pages: 445 - 453

12. A Comparison of Muscular Activity During Gait Between Walking Sticks and a Walker in Patients With Adult Degenerative Scoliosis

    • Ram Haddas
    • Isador H. Lieberman
    • Rumit Singh Kakar

    OriginalPaper 30 December 2019 Pages: 454 - 466

13. Validation of a Simplified SRS-Schwab Classification Using a Sagittal Modifier

    • D. C. Kieser
    • L. Boissiere
    • on behalf of the European Spine Study Group (ESSG)

    OriginalPaper 30 December 2019 Pages: 467 - 471

14. Do Curve Characteristics Influence Stenosis Location and Occurrence of Radicular Pain in Adult Degenerative Scoliosis?

    • E. Ferrero
    • M. Khalifé
    • P. Guigui

    OriginalPaper 30 December 2019 Pages: 472 - 480

15. Evolution in Surgical Approach, Complications, and Outcomes in an Adult Spinal Deformity Surgery Multicenter Study Group Patient Population

    • Alan H. Daniels
    • Daniel B. C. Reid
    • International Spine Study Group

    OriginalPaper 30 December 2019 Pages: 481 - 488

16. The Pros and Cons of Operating Early Versus Late in the Progression of Cerebral Palsy Scoliosis

    • Steven M. Hollenbeck
    • Burt Yaszay
    • Peter O. Newton

    OriginalPaper 30 December 2019 Pages: 489 - 493

17. The Management of Kyphosis in Metatropic Dysplasia

    • Jennifer M. Bauer
    • Colleen P. Ditro
    • William G. Mackenzie

    OriginalPaper 30 December 2019 Pages: 494 - 500

18. Cost-Effectiveness of Magnetically Controlled Growing Rods: Who Really Benefits?

    • Matthew E. Oetgen
    • Elise M. McNulty
    • Allison L. Matthews

    OriginalPaper 30 December 2019 Pages: 501 - 504

19. Giant De Novo Pleomorphic Adenoma of Parapharyngeal Space, Can It Cause Spinal Deformity? A Case Report

    • Poonam Sagar
    • Pragya Rajpurohit
    • Shramana Mandai

    Case Report 30 December 2019 Pages: 505 - 508