Reverse Total Shoulder Arthroplasty with Concurrent Latissimus Dorsi Tendon Transfer

Purpose of Review Reverse total shoulder arthroplasty (rTSA) has emerged as an effective treatment option for patients with rotator cuff arthropathy resulting from irreparable rotator cuff tears. However, patients with combined loss of abduction and external rotation may still experience functional deficits after rTSA. One option to address this has been the latissimus dorsi tendon transfer (LDTT), or modified L'Episcopo procedure. The purpose of this review is to describe the role of LDTT with rTSA and to critically evaluate the evidence on whether a supplemental LDTT ultimately improves patient function. Recent Findings Patients with an intact rotator cuff demonstrated a significant increase in active external rotation following rTSA compared to those with a deficient rotator cuff following rTSA. Compared to their pre-operative baseline assessments, patients who undergo rTSA with LDTT report significant improvements in active external rotation. However, a randomized trial comparing rTSA patients with and without LDTT failed to demonstrate a significant difference in active external rotation or patient-reported outcomes between groups. Observational studies have shown that patients experience significant improvements in active range of motion and various patient-reported outcome measures following rTSA with latissimus dorsi tendon transfer. When directly comparing rTSA with LDTT to rTSA alone, the current literature fails to demonstrate a statistically significant difference in active external rotation or patient-reported outcomes at short-term follow-up. Further randomized controlled trials are required to fully understand the potential benefits of added tendon transfer in the rTSA patient population.