A new, all-inside technique for meniscus repair

A new method for arthroscopic meniscal repair using sutures with multiple k nots was developed, and its mechanical strength was evaluated. Sutures are passed arthroscopically through the torn meniscus using a needle with a cle ft in its tip, and when the needle is withdrawn, knots are placed both in t he meniscus and the joint capsule. Our method does not require additional s kin incisions and can be performed for repair of posterior tears. Furthermo re, this all-inside technique minimizes the risk of popliteal neurovascular injury. Biomechanical analysis using bovine menisci showed that the maximu m frictional force between the suture and meniscus was greater than the max imum strength of a suture itself. Our method is simple and rapid, making it easy to insert multiple sutures to achieve adequate stability.