Isolated popliteus tendon avulsion in skeletally immature patients.

Four cases of isolated popliteus tendon avulsion in skeletally immature patients that presented to our institution over an 11 month period are reviewed. All the cases had characteristic features on the initial knee radiograph and the diagnosis was confirmed using magnetic resonance imaging (MRI). A brief literature review is included. The aim of the present study was to raise awareness of the radiographic findings of isolated popliteus tendon avulsion in adolescent patients.