496 The Risk of Local Recurrence in Cases of Unplanned Excision without Additional Wide Excision

497 Musculoskeletal Tumor Society Member Survey: Intraoperative Peripheral Margins in Soft Tissue Sarcoma

498 Intraoperative Margin Sampling in Soft Tissue Sarcoma

499 Risk Factors for Surgical-Site Infection after Soft-Tissue Sarcoma Resection and Development of a Risk Scoring System

500 Surgical Outcomes in Patients Treated with 5-day Neoadjuvant Radiotherapy for Primary Soft Tissue Sarcoma