Evaluation of in Vivo Rotator Cuff Muscle Function After Acute and Chronic Detachment of the Supraspinatus Tendon

Abstract

Both the acute and chronic injury groups demonstrated functional impairment related to increasing preload tensions. Higher repair tensions, associated with the chronic injury setting, resulted in greater functional impairment. The present study also demonstrates an association between increased time from rotator cuff tendon injury and impaired in vivo rotator cuff muscle electromyographic findings.