e056 A Reduction in Body Mass Index from &ge 40 to < 40 Lowers Emergency Department Visits, but May Increase All-cause Readmissions after Primary Total Hip Arthroplasty: Conflicting 90-Day Outcomes at a Single Institution

e057 Time to Achieve the Minimal Clinically Important Difference in Primary Total Hip Arthroplasty: Comparison of Anterior and Posterior Surgical Approaches

e058 Is American Joint Replacement Registry Data Consistent with International Survivorship in Hip and Knee Arthroplasty? A Comparative Analysis

e059 Periprosthetic Fractures: A Rising Tide of Total Hip Arthroplasty Failures Noted in the American Joint Replacement Registry (AJRR) and the Role of Cemented Stems in Preventing Them

e060 Similar Outcomes with Modular and Non-Modular Stems for Revision Total Hip Arthroplasty Performed for Periprosthetic Fractures