Biomechanics of the rotator cuff.

Thorough understanding of rotator cuff mechanics is important for effective treatment and/or prevention of cuff injuries. This understanding is achieved through knowledge of normal cuff structure and mechanics. Only then, can the effects of injuries and pathologic processes on normal cuff function be carefuly assessed. Rotator cuff structures are viewed and analyzed on a number of different levels. This article presents current knowledge of rotator cuff mechanics through review of cuff structure and anatomy, corocoacromial arch structure and biomechanics, and biomechanical models.