317 An Externally Validated Algorithm for Prediction of In-Hospital and Ninety-Day Mortality after Spinal Epidural Abscess

322 Antibiotic Prophylaxis Does Not Decrease Infection Rate in Pediatric Supracondylar Humerus Fractures Treated with Closed Reduction and Percutaneous Pinning: A Prospective Double-Blinded Randomized Controlled Trial

396 Borderline Acetabular Dysplasia: Three-Dimensional Deformity Predictors of the Diagnosis of Symptomatic Instability Treated with Periacetabular Osteotomy

403 Treatment of Impending Fractures is More Cost-Effective than Treatment of Completed Pathological Fractures in the Long Bones: A Propensity-Score Matched Study of 399 Patients

503 K-Wire vs. Screw Fixation in Pediatric Lateral Condyle Fractures: A Multicenter Study of 762 Fractures