Three-point contact repair technique for partial subscapularis tears using U-stitch and cow hitch knot loaded on a single knotless anchor: simple, reliable and quick method

Abstract

The importance of repairing the subscapularis tendon to facilitate restoration of the rotator cuff force couple is obvious. However, identifying and repairing subscapularis tears can be challenging for surgeons. In this technical note, we present our preferred surgical method for Lafosse type 1, 2, and 3 and Yoo and Rhee type 1-2A and 2B subscapularis tears, providing a 3-point suture contact achieved with FiberTape (Arthrex) and knotless anchors. In this technique, fiber suture is placed into the superolateral edge of the subscapularis tendon as a traction stitch (cow hitch knot). Second, the FiberTape is passed through the medial upper and lower parts of the tendon, just perpendicular to the fibers, using a suture passer. The FiberTape's free ends remain on the tendon's anterior side, shaping a U form. The U-shaped FiberTape and traction suture are loaded to a knotless anchor and placed on the footprint area. This creates a 3-point contact between the FiberTape U-suture and the cow hitch knot on the area. We believe that this technique provides fast and reliable fixation due to its 3-point contact application and simplicity. © 2024 The Authors