e509 Mortality following Surgical and Nonsurgical Treatment of Odontoid Fracture among Medicare Beneficiaries and the Influence of Dementia: A Matched Cohort Analysis

e599 Preoperative Differences in Joint Space Width Predict Early Conversion to Total Hip Arthroplasty following Hip Arthroscopy: 5-Year Outcomes

e600 Concomitant Lumbosacral Spine Pathology is Not a Contraindication for Arthroscopic Hip Preservation Surgery: A Matched Control Study Comparing Mid-Term Outcomes

e605 Hip Arthroscopy Versus Physical Therapy for the Treatment of Symptomatic Acetabular Labral Tears in Patients Older than 40 Years: A 2-Year Report of a Randomized Controlled Trial

e710 Assessing the Accuracy of the Radiographic Ruler for Comminuted Femur Fractures: A Cadaveric Study