Summary

Comparison of knotted all suture anchor and knotless anchor for Bankart repair

Abstract

Background

Both knotted all suture anchors and knotless anchor are used for arthroscopic Bankart repair. We retrospectively evaluated and compared clinical and functional outcome after arthroscopic Bankart repair using knotted all-suture anchor and knotless anchor.

Methods

In a retrospective cohort analysis, patients who underwent arthroscopic Bankart repair without any concomitant additional lesion repair using either knotted all-suture anchor or knotless anchor, between January 2015 and May, 2018 with minimum of 2 year post-operative follow up were identified and divided into group A and B respectively. Their pre and post-operative functional and clinical outcomes were compared using Rowe, WOSI and change in WOSI scores. Recurrence rate in the two groups was also compared.

Results

A total of 41 patients in group A and 37 in group B were identified as per inclusion and exclusion criterion. Demographic profile of both the groups was comparable. There was no significant difference in clinical and functional outcome between the groups as per Rowe (pre-operative 40.12+6.17 vs 39.59+6.05, 95% CI -3.2910 to 2.2310, p value 0.70 and post-operative 90.85+12.59 vs 88.10+16.21, 95% CI -9.2617 to 3.7617, p value 0.40) and WOSI (pre-operative 945.97+213.95 vs 995.64+181.92, 95% CI -40.37 to 139.71, p value 0.27 and post-operative 303.60+248.14 vs 383.14+330.37, 95% CI -51.4351 to 210.5151, p value 0.23) scores. Redislocation rates were also comparable (4.8% vs 5.4%).

Conclusion

Knotted all-suture anchor showed comparable clinical and functional results as the knotless anchor for arthroscopic Bankart repair at 2 year follow-up.

Level of evidence: Level III
Keywords: Shoulder dislocation, Bankart lesion, suture anchor.