No Difference Between Anchorless and Traditional Suture Anchors in Arthroscopic Bankart Repair: A Clinical Comparison

Abstract

BackgroundShoulder instability and recurrent dislocations are common problems encountered by orthopedic surgeons and are frequently associated with a Bankart lesion. These are classically treated with either open or arthroscopic repair utilizing traditional suture anchors, though anchorless fixation techniques have recently been developed as an alternate fixation method that reduces native bone loss and has comparable pull-out strength. MethodsA retrospective review was performed at a single institution for patients who underwent Bankart repair from January 2008 through February 2014. American Shoulder and Elbow Surgeons (ASES) questionnaires were mailed to 35 patients with anchorless fixation and 35 age-, gender-, and surgeon-matched patients with traditional suture anchors. Statistical analysis was performed comparing re-dislocation, additional surgery, and ASES scores with statistical significance set at p < 0.05. ResultsEleven patients in the anchorless implant group and 15 patients in the anchor group completed the questionnaire. The mean follow-up was 4.1 years in the anchorless group and 5.6 years in the anchor group (p=0.04). The number of implants was 4.82 in the anchorless group and 3.87 in the anchor group (p = 0.04). No difference was found in re-dislocation rates (p = 0.80) or additional surgery on the affected shoulder (p = 0.75). ASES scores were found to have no statistical difference (89.89 for the anchorless group versus 85.37 for the anchor group; p = 0.78). ConclusionIn patients undergoing arthroscopic Bankart lesion repair with traditional anchors compared to anchorless fixation, there appears to be no difference in shoulder re-dislocation rates, recurrent ipsilateral shoulder surgery, or ASES scores.

Clinical Results of Knot-tying Versus Knotless Suture Anchors in Arthroscopic Anteroinferior Labral Repair

“…While we did not look specifically at postoperative ROM, the potential ROM restriction may contribute to the preference for knotless repairs. While maximizing functional outcomes is important, and the selection of anchor type may contribute to patients’ functional improvement, numerous studies have shown consistent improvements in functional outcomes for all patients undergoing arthroscopic treatment of shoulder instability regardless of the type of anchor used [ 9 , 20 - 22 ]. The current study measured postoperative function using the UEFS, which is a tool that looks at global function rather than sports-specific function.…”