Objective: The purpose of this study was to investigate the differences in the epidemiology and outcomes of traumatic and nontraumatic rotator cuff tears.
Methods: Thirty-three patients with traumatic and 46 with nontraumatic rotator cuff tears were included.
Results: The rate of injury to the long head of the biceps was significantly higher in the traumatic group. Preoperative active forward elevation was significantly lower in the traumatic group.
Conclusion: The outcomes of both groups were good. This may have been because milder preoperative muscle atrophy and a shorter duration of symptoms were observed in the traumatic group.
Keywords: Epidemiology; Long head of biceps; Non-traumatic rotator cuff tear; Range of motion; Traumatic rotator cuff tear.