Influence of initial tension on the postoperative tibiofemoral relationship after anatomic anterior cruciate ligament reconstruction

摘要

Background: The initial tension at graft fixation is one of the keys for successful outcomes after ACL reconstruction. Mae et al. previously reported good clinical outcomes after anatomic double-bundle (ADB) ACL reconstruction with a total initial tension of 20 N (Mae T, et al. Arthroscopy 2010). Recently, anatomic triple-bundle (ATB) procedure was developed in order to mimic the closer morphology of the native ACL and provided the better immediate postoperative stability than the ADB procedure with the same initial graft tension of 20 N (Mae T, et al. Arthroscopy 2013). Thus, we hypothesized that the ATB procedure might provide good postoperative outcomes with the smaller initial tension. The aim of this study was to prospectively compare the tibiofemoral relationship after the ATB ACL reconstruction with 10 N of initial tension to that with 20N.