e418 Subacromial Decompression is Associated with Reduced Risk of Revision Rotator Cuff Repair: A Large Matched Cohort Insurance Database Analysis

e450 Stability of Onlay-Inset and Symmetric-Asymmetric Glenoid Component Designs: A Biomechanical Study

e489 Comparative Analysis of Factors Associated with Achieving Clinical Improvement in Adult Spinal Deformity Patients after Reoperation for Junctional Failure, Instrumentation Failure, or Pseudoarthrosis

e491 Predicting Good Outcomes after Adult Spinal Deformity Surgery: Analysis of Preoperative Symptoms with Optimal Radiographic Alignment and Patient Outcomes