Lesions of the long head of the biceps (LHB) tendon are commonly recognized as generators of anterior shoulder pain. In particular, disruption of the biceps reflection pulley (BRP) has been shown to be part of the differential considered when evaluating the LHB and anterior shoulder pain. The BRP is a capsuloligamentous complex that stabilizes the LHB tendon in the bicipital groove and is composed of 4 major structures: the superior glenohumeral ligament, the coracohumeral ligament, the upper margin of the subscapularis (SSC) tendon, and anterior fibers of the supraspinatus (SSP) tendon. More precisely, the BRP is located within the rotator interval between the anterior edge of the SSP tendon and the superior edge of the SSC tendon. Recent biomechanical work by Braun has shown that BRP lesions may be a direct result of increased shear loads in a forward flexion position with internal or neutral rotation, and in a neutral arm position with internal rotation. Le Huec similarly described a fall on the outstretched arm in combination with full external or internal rotation, as well as a fall backward on the hand or elbow as a trigger for pulley lesions. In contrast, Gerber and Sebesta reported repetitive forceful internal rotation above the horizontal plane as the inciting cause. Although there is no specific consensus on the mechanism of BRP lesions, it is likely a combination of chronic lesions and acute triggers that are responsible for most BRP lesions. Because of the infrequent occurrence, surgical management of this pathology, in particular biceps tenodesis (BT), has not been thoroughly evaluated; however, BRP lesions do have the potential to diminish patient quality of life and prevent patients from engaging in sports and other recreational activities. Indeed, surgeons and patients may have concerns regarding BT in young and active patients under the age of 50 years because this procedure is more common in elderly people.
Therefore, the purpose of the study was to investigate if patients younger than 50 years old had improved functional outcomes after subpectoral BT for the treatment of BRP lesions at minimum 2-year postoperative follow-up. Further goals were to determine whether a correlation exists between patient age and clinical outcome scores and to ascertain the ability of patients to return to activity. It was hypothesized that subpectoral BT would result in reduced pain, improved functional outcomes, and a high return-to-activity rate.
Full Article: Isolated Biceps Reflection Pulley Tears Treated With Subpectoral Biceps Tenodesis: Minimum 2-Year Outcomes