[Causes of subcutaneous tendon rupture in athletes]

Causes of subcutaneous injuries of the Achilles tendon (in 162 patients), of the long head of musculus biceps brachii (in 33 patients), distal tendon of musculus biceps brachii (in 4 patients) and tendon of musculus quadriceps femoris (in 3 patients) were analyzed. Macro- and microscopic structures of the lacerated ends were also studied. The authors make a conclusion that tenorupture is always proceeded by microtrauma.