THE HEALED SEGOND FRACTURE - A CHARACTERISTIC RESIDUAL BONE EXCRESCENCE

This report describes the natural history of the Segond fracture and d ocuments the radiographic appearance of the healed Segond fracture. Th e clinical and radiographic records of 129 patients with acute anterio r cruciate ligament (ACL) injuries were reviewed. Four (3.1%) of these patients had Segond fractures. On follow-up radiographic examination, seven patients demonstrated a characteristic bone excrescence arising 3-6 mm inferior to the lateral tibial plateau. In four of the five pa tients for whom acute injury films were available this excrescence aro se at the site of the earlier Segond fracture. Healing of such fractur es is associated with a characteristic bone excrescence distinct from an osteophyte. This excrescence implies significant internal derangeme nt of the knee.