Hamstring injuries as an indication for ultrasound imaging

Proximal hamstring injuries are frequent among athletes, commonly involving their long myotendinous junction during an eccentric contraction. The long head of the biceps femoris and the semitendinosus muscle originate from a conjoint tendon at the medial and posterior aspects of the ischial tuberosity, whereas the semimembranosus tendon has a more lateral and anterior origin. Ultrasound (US) is able to show the normal architecture of the proximal hamstring muscle complex as well as the appearance of bone-tendon-muscle unit injuries. Due to the long extension of the conjoint and semimembranosus tendons, the examination should be started at the ischial tuberosity and extended caudally to the middle third of the posterior thigh, adding a comparative scan to confirm pathologic findings > Becciolini et al. 2018