Rotator cuff repair with a novel mesh suture: An ex vivo assessment of mechanical properties.

摘要: Surgical repair is a common treatment for rotator cuff tear; however, the retear rate high. A high degree of suture strength important to ensure integrity healing. The purpose this study was compare mechanical performance cuffs repaired with mesh versus traditional polydioxanone II and FiberWire sutures in canine vitro model. Seventy-two shoulders were harvested. An infraspinatus tendon tear created each shoulder. Two techniques-simple interrupted two-row bridge-were used reconnect greater tuberosity, using three different types: Mesh suture, II, or FiberWire. Shoulders loaded failure under displacement control at 20 mm/min. Failure load compared between types techniques. Ultimate significantly higher specimens than FiberWire, regardless technique. There no significant difference stiffness among six groups, exception that repairs stiffer simple All failed by pull-out from tendon. Based on our biomechanical findings, might provide superior initial against sutures. Use may increased fixation decrease gap formation, which could result improved healing lower re-tear rates following repair. © 2017 Orthopaedic Research Society. Published Wiley Periodicals, Inc. J Orthop Res 36:987-992, 2018.