Effect of Additional Sutures per Suture Anchor in Arthroscopic Bankart Repair: A Review of Single-loaded Versus Double-loaded Suture Anchors

Abstract

To directly compare single-loaded suture anchors (SSA) with double-loaded suture anchors (DSA) to help surgeons optimize the operative technique, time, and cost of Bankart repairs. A literature review was performed using the PubMed and SCOPUS databases. Studies that directly compared SSA and DSA for Bankart repairs, or indirectly compared them by collecting relevant data despite a different objective, were included. A total of two studies were included, both of which were cadaveric laboratory studies. A total of 28 shoulders were tested. Tests conducted include loading to failure and cyclic loading. One study found SSA to be biomechanically equivalent to DSA, and one found DSA to be superior. Based on limited cadaveric study, DSA are at least equivalent biomechanically to SSA, and may be superior. By using DSA, surgeons create repair constructs that are as strong as, or stronger than, those made with SSA, but with fewer anchors. This reduces the amount of holes drilled and implants placed in the glenoid, while also minimizing cost. Quantifying the benefit of additional sutures in a suture anchor can help optimize the quality of repair, time, and cost in arthroscopic shoulder repair.