literature

Isolated rupture of the popliteus musculotendinous unit is an uncommon injury. A case is here reported of a semi-professional athlete with a ruptured popliteus tendon with-out significant instability of the knee. The diagnosis was made by magnetic resonance imaging and confirmed by arthroscopy. Isolated rupture of the popliteus musculotendinous unit isan uncommon injury. Popliteus ruptures are usuallyassociated with acute or chronic posterolateral instability of the knee.1 2 In these cases the injury is extensive and may include disruption of the arcuate ligament complex, the lateral collateral ligament, both cruciates, and the menisci.1 3 We present a case of a semiprofessional athlete who had rup-ture of the popliteus tendon without significant instability of the knee. The diagnosis was made by magnetic resonance imaging (MRI) and confirmed by arthroscopy. CASE REPOR