ObjectiveTo compare the effect between two location methods on femoral tunnel in anterior cruciate ligament reconstruction. MethodsA total of 80 patients undergoing single-bundle anterior cruciate ligament reconstruction with hamstring autografts were selected as subjects, and were randomly divided into femoral tunnel using transtibial approach group (TT group) and femoral tunnel using anteromedial portal group (AM group),with 40 cases in each group. The length of femoral tunnel was recorded during operation, the angle of femoral tunnel in the coronal and sagittal views and the relative position of femoral termination away from Blumensaat line were measured and calculated in X-ray images after operation, and then statistical analysis was performed. ResultsThe femoral tunnel length of the TT group was significantly longer than that of the AM group ［(47.13±6.78)mm vs. (42.10±4.65)mm, P＜0.05］.The angles in coronal/sagittal views of the TT group and the AM group were (53.33±6.68) °/(44.45±8.59)° and (45.25±4.93)° / (37.13±6.52)° respectively, and statistical differences were observed between the two groups(P＜0.05). The relative positions of the femoral termination were (61.22±6.09)% and (65.01±4.83)% in the TT group and the AM group respectively, and statistical difference was observed between the two groups(P＜0.05). ConclusionCompared with the TT technique, the femoral tunnel established by AM technique obtains shorter length and smaller angle, can be located on the anatomical footprint of the anterior cruciate ligament more easily, and achieves equal length reconstruction.

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