Single femoral socket double-bundle anterior cruciate ligament reconstruction using tibialis anterior tendon: description of a new technique.

The native anterior cruciate ligament (ACL) has been shown to consist of 2 functional bundles with independent behavior throughout range of knee motion. Conventional arthroscopic ACL reconstruction techniques selectively recreate the anteromedial bundle of the native ACL only. Numerous studies have reported the failure to restore normal knee kinematics in an ACL-deficient knee using a single-bundle reconstruction. It has been suggested that by reconstructing both the anteromedial and posterolateral bundles of the ACL, more normal knee kinematics may be achieved. Several authors have described surgical techniques to recreate the 2 functional bundles and they range from using 2 femoral tunnels to using a single femoral tunnel with the other bundle passed over the top. This article describes a new technique of recreating the 2 functional bundles of the ACL with tibialis anterior tendon allograft using a single femoral socket.