541 Patient and Operative Risk factors for Subsequent Total Knee Arthroplasty Following Primary Anterior Cruciate Ligament Reconstruction: A Cohort Study of 52,222 Patients

542 Long-Term Follow-up of a Randomized Clinical Trial Comparing Patellar Tendon, Hamstring Tendon and Double-Bundle ACL Reconstructions: Ten-Year Patient-Reported and Clinical Outcomes

543 Outcomes of Isolated Medial Patellofemoral Ligament Reconstruction after First-Time and Recurrent Patellar Instability: Recurrence, Return to Sport, and Osteochondral Injury: Data from the JUPITER Cohort

544 Randomized Controlled Trials Assessing Continuous Outcomes for the use of Platelet-Rich Plasma in Knee Osteoarthritis Are Statistically Fragile: A Systematic Review

545 Adolescents Achieve More Durable 10-Year Patient-Reported Outcome Improvements After Contemporary Hip Arthroscopy for Femoroacetabular Impingement Syndrome: A Propensity-Matched Analysis