Below knee amputations (BKA) are a relatively common procedure in orthopedic patients with advanced pathology of the lower extremities due to infection, trauma, and neoplastic disease. Prior studies of outcomes following BKA have largely relied on the National Surgical Quality Improvement Program (NSQIP) database, whose 30-day postoperative window does not cover the entire at-risk period. The purpose of this study was to elucidate reoperation rates along a more clinically meaningful one-year timeline and identify risk factors for reoperation.