Traumatic myositis ossificans is well known to occur in the muscle hematoma as a result of a contusion or a strain.
An 18-year-old male of traumatic myosits ossificans after contusion on his right anterior thigh while playing rugby football was reported. Five and seven days after the first injury he played rugby football and reinjured the same area. Three weeks after the reinjury he had increased anterior thigh pain and limited motion of the knee. When examined, the right quardriceps was tender and swollen in the antero-mid thigh. Flexion of the knee was about 80 degrees due to pain. Roentgenograms showed linear and cloudy calcification in the quardriceps muscle. His knee was immobilized, and he was given a non-steroid antiinflamatory agent for two weeks. After pain relief rehabilitation began with exercise to increase the range of motion. Four months after the first injury, the patient had no pain and limitation of knee flexion.
Adolescents actively involved in contact sports are at risk for muscle trauma, which can results in myositis ossificans. The development of traumatic myositis ossificans is related to the severity of the quardriceps contusion.
Recognition and appropriate therapy can reduce the associate disability.
