273 Implant Mismatch Does Not Affect Patient Outcomes in Primary Reverse Shoulder Arthroplasty ♢

343 Does Melatonin Improve Sleep Following Primary Total Hip Arthroplasty: A Randomized, Double-Blind, Placebo-Controlled Trial

362 Predicting and Understanding the Risk for Shoulder and Elbow Injuries in Major League Baseball Pitchers: A Game-Theory-Based Machine Learning Approach

390 Cell Count and Differential of Aspirated Fluid in the Diagnosis of Periprosthetic Joint Infection of Total Elbow Arthroplasty

408 Psychological Distress is Common and Influences Hip Dysfunction in Young Adults:  Efficient and Comprehensive Assessment with OSPRO-YF