398 Reconstruction following Giant Cell Tumor of the Extremity: Subchondral Bone Grafting Decreases Risk for Arthritis and Fracture Compared with Polymethylmethacrylate Alone

399 Treatment of Osteoporosis with Anabolic Agents and the Risk of Primary Bone Cancers: A Study of 44,728 Patients Treated with Teriperatide and Abaloparatide

400 Prospective Evaluation of Tranexamic Acid in Metastatic Cancer Patients with Pathologic Fractures Treated with Total Hip Arthroplasty or Hemiarthroplasty

401 Does Time to Surgical Fixation Matter in Pathologic Proximal Femur Fractures?

402 Evaluating Surgical Outcomes of Patients with Metastatic Bone Disease Managed with Urgent Elective versus Emergent Surgical Care Pathways