Dislocation of the long head of the biceps tendon with intact subscapularis and supraspinatus tendons.

O w large body of evidence supports the fact that ubluxation and dislocation of the long head of the iceps tendon are relatively common findings associted with rotator cuff pathology. Dislocation of the ong head of the biceps is often linked to chronic egenerative changes seen with impingement synrome and tears in the rotator cuff, especially the ubscapularis tendon. One report states that medial isplacement of the long head of the biceps tendon an occur in up to 16% of rotator cuff tears. Other uthors have reported isolated dislocations of the iceps tendon without the presence of rotator cuff ears. However, to our knowledge, there have een no reports of a medially dislocated long head of he biceps tendon with intact subscapularis, supraspiatus, and infraspinatus tendons. We report on a atient with posttraumatic posterior shoulder instabilty with a medial dislocation of the long head of the iceps tendon over an intact subscapularis tendon ithout evidence of a torn rotator cuff. This injury is nique in that the subscapularis tendon is not torn, mplying an injury to the tissues of the rotator interval, ikely the coracohumeral and superior glenohumeral igaments.