Orientation of the rotator cuff insertion facets on the humerus: Comparison between individuals with intact and torn rotator cuffs

A decrease in the dorsal orientation of the middle facet of the greater tubercle, as we observed in the torn rotator cuff group, may reduce the inferior translatory forces generated by the infraspinatus thereby facilitating impingement of the subacromial structures. These additional anatomical data might augment the body of knowledge on rotator cuff pathology.