ARTHROSCOPIC STABILISATION OF THE SHOULDER: A PROSPECTIVE RANDOMISED STUDY OF ABSORBABLE VERSUS NON-ABSORBABLE SUTURE ANCHORS. RESULTS OF A 5-YEAR FOLLOW UP

Aim: The aim of this study was to evaluate prospectively the mid-term outcome following arthroscopic Bankart repair using two types of suture anchor, the G II (Mitek) non-absorbable and the Panalok (Mitek) absorbable anchor. Method: Patients with a diagnosis of recurrent traumatic anterior instability of the shoulder seen between April 2000 and June 2003 in a single unit were considered for inclusion in the study. Patients were assessed preoperatively and postoperatively using a subjective patient related outcome measurement tool (Oxford instability score), visual analogue scales for pain and instability and a quality of life questionnaire (SF-12). Patients were randomised to undergo surgical repair with either non-absorbable or absorbable anchors. Length of follow-up was 3.3–6.5 (mean 5.0) years. The incidence of recurrent instability and the level of sporting ability were recorded. Results: 130 patients were included in the study. 25 patients were lost to follow-up, 105 patients (81%) completed the study. 5 patients in absorbable group and 4 patients in non-absorbable group experienced further dislocation (8.5%). Both types of anchor were highly effective. There were no differences in the rate of recurrence or any of the scores between the two. Conclusions: There are no differences in the outcome of arthroscopic Bankart repair using either absorbable or non-absorbable anchors. Both are highly effective, showing a redislocation rate of 8.5%.