LAUSR

Background Recent evidence continues to confirm the effectiveness of arthroscopic superior capsular reconstruction (SCR) in relieving pain and improving function in an irreparable cuff deficient shoulder. This paper presents an up-to-date literature review on SCRand a tertiary referral unit experience in the United Kingdom. Methods Data was prospectively collected on patients undergoing SCR for irreparable rotator cuff tears using a dermal allograft. Patients with already established arthritis were excluded. The first 49 consecutive cases performed by 3 surgeons over 3 years (including their learning curve) with average follow-up of 19 months (range 3-37 months) were analysed. The outcomes assessed were re-operation rates, patient satisfaction and complications. The study group was analysed to identify the factors predicting outcomes. Results The average age of the cohort was 56 years. The re-operation rate in this group was 12.2% with each of these 6 patients subsequently undergoing a reverse total shoulder arthroplasty. Forty (82%) patients were satisfied with the outcome of the procedure with 35 (72%) of them showing complete pain relief, 5 (10%) having dull aches and clicks and the remaining 9 (18%) unsatisfied due to pain. There was no difference in satisfaction rates between different age groups (p > 0.05). The pre-operative factors associated with poor outcomes included patients with multiple previous surgeries on the same shoulder (p = 0.02) and teres minor atrophy or tear (p = 0.03). The other factors that showed a trend towards inferior outcomes (but not statistically significant) included patients with degenerative tears, symptoms of longer duration (>24 months) and subscapularis tear/atrophy. No serious adverse effects such as graft rejection, infection or neuro-vascular injury were observed. Conclusion Early results of superior capsular reconstruction are promising and may offer an answer to a challenging group of patients with symptomatic irreparable rotator cuff tears. It is likely that the relatively low re-operation rates can be further improved by considering the negative prognostic factors in defining indications for surgery.