Effect of Arthroscopic Treatment of Tibial Avulsion Fracture of Anterior Cruciate Ligament with Hollow Screws and Steel Wire

Abstract：Objective The screw and steel wire is a common fixation method for the treatment of avulsion fracture of the tibial eminence. Even though some biomechanical studies have compared the stability of the two,the clinical reports are less. The aim of this study was to compare the efficacy of arthroscopic treatment of screw and wire fixation in tibial eminence avul-sion fracture. Methods A retrospective analysis was made on the treatment of avulsion fracture of the tibial eminence between April 2015 and October 2010. The patients were divided intothe screw group(11 cases)and the steel wire group(21 cases). All patients were followed up 6 ~ 12 months,including the knee joint function and the stability of the ligament. The knee joint function was evaluated by Lysholm,IKDC and Tegner scoring system. The stability of the knee joint was evaluated by Lachman test and Pivot-shift test. Results All the 32 cases were followed up,no complications such as incision and joint infection oc-curred. In this study,traffic injury was 75% ,Median operatingtime was 57 minutes in screw fixation group and 67 minutes in steel wire group(P ﹤ 0. 05). At the last follow-up,IKDC,Tegner and Lysholm score were(94. 59 ± 1. 28)、(93. 95 ± 1. 50)、(8. 2 ± 0. 39),and the steel wire were(93. 98 ± 1. 16)、(93. 27 ± 1. 38)、(8. 2 ± 0. 33). Lachman testwas negative in 10 pa-tients,positive in 1 patients and negative in 20 patients,positive in 1 patients in group screw andsteel wire,respectively. Pivot-shift testwas negative in 10 patients,positive in 1 patients and negative in 20 patients,positive in 1 patients in group screw and steel wire,respectively. Conclusion For the arthroscopic fixation of tibial avulsion fractures of the anterior cruciate ligament with screws and steel wire. Althoughthe latter has longer operation time,there is no significant difference in the function and stability of the knee joint.