Arthroscopic placement of a modified Mason-Allen stitch.

Recent studies have shown all-arthroscopic rotator cuff repairs to have comparable clinical results to mini-open or open repairs. Previous drawbacks to arthroscopic repair have included not being able to place a modified Mason-Allen stitch with a suture anchor technique. We present a technique using the Arthrex Scorpion device (Arthrex, Naples, FL) to place a modified Mason-Allen stitch arthroscopically via a double-loaded FiberWire metal suture anchor (Arthrex). The Scorpion suture passer places a stitch from inferior to superior through the torn rotator cuff. The suture is grabbed and reloaded into the Scorpion device. The device is then turned upside down, and a horizontal stitch is placed from superior to inferior. The stitch is retrieved again and reloaded a third time. The last pass is placed so that the final stitch passes anterior to the inferior suture but beyond the previously placed horizontal mattress stitch. This effectively reproduces the described biomechanically superior modified Mason-Allen stitch.