Latissimus dorsi tendon transfer versus open complete repair for symptomatic massive rotator cuff tear.

Background: Symptomatic massive rotator cuff tear (MRCT) treatment is challenging, and there is no clear treatment strategy. In our study, we aimed to compare latissimus dorsi tendon transfer (LDTT) and open complete repair (OCR) surgical techniques for the treatment of MRCT.

Methods: Cases of symptomatic MRCT treated surgically with LDTT and OCR techniques between 2014 and 2021 were included in the study. The study was conducted in two centers: 1) one surgeon performed LDTT in first center and 2) the other surgeon performed OCR in second center. This study included 18 cases of LDTT and 15 cases of OCR. The patients were evaluated preoperatively and postoperatively in terms of demographic, radiological and functional scores. The American Shoulder and Elbow Surgeons (ASES) score, Constant-Murley (CM) score, and visual analog scale (VAS) were used for functional evaluation. Symptom duration was defined as less than 6 months after onset, longer than 6 months and less than one year (<1Y)after onset, and longer than one year (>1Y) after onset.

Results: The functional scores and range of motion improved significantly in both groups. No statistically significant differences were found between the symptom duration subgroups in the LDTT group. However, there was a significant difference in functional scores between <1Y and >1Y (P < 0.001) in the OCR group. Re-tear was seen in 5 (33.3 %) cases in the OCR group, and failure was seen in 3 (16.6 %) cases in the LDDT group. The failure rate was significantly higher in the OCR group than in the LDTT group (P < 0.05).

Conclusions: LDTT technique is good option in the treatment of MRCT. However, in acute-subacute MRCT cases, open complete repair is a simpler, successful and safe technique. In chronic cases of >1Y, re-tear rates with OCR were high, and functional outcomes were low. We recommend that LDTT treatment for chronic cases (>1Y).