Lane J G, Irby S E, Kaufman K, Rangger C, Daniel D M
San Diego Kaiser Permanente Medical Center, California.
Am J Sports Med. 1994 Mar-Apr;22(2):289-93. doi: 10.1177/036354659402200222.
Changes in axial tibial rotation after anterior cruciate ligament sectioning were evaluated in 14 fresh human knee joints. Simulation of vertical stance in a quadriceps-stabilized knee was performed. Internal and external rotational torques were applied before and after anterior cruciate ligament sectioning. Pivot shift tests were done in the intact and anterior cruciate ligament sectioned knee. Results of pivot shift tests were all negative before sectioning and positive after isolated sectioning. No significant change in axial rotation occurred between the intact and sectioned knee for external rotation (P = 0.24) or internal rotation (P = 0.12). Presence of a load at the femoral housing in both the intact and ligament-sectioned knees caused a significant change in external rotation (P < 0.0001). No significant change was noted in internal rotation between loaded and unloaded states (P = 0.70). Total tibial rotation in the intact knee was noted to vary between 31 degrees at 0 degree of flexion and 42 degrees at 60 degrees of flexion. These results suggest that the anterior cruciate ligament does not play a significant role in limiting axial rotation and that rotational instability is not a major factor after isolated anterior cruciate ligament rupture.
在14个新鲜人膝关节中评估了前交叉韧带切断后胫骨轴向旋转的变化。在股四头肌稳定的膝关节中模拟垂直站立。在前交叉韧带切断前后施加内、外旋转扭矩。在完整和前交叉韧带切断的膝关节中进行轴移试验。轴移试验结果在切断前均为阴性，单独切断后为阳性。完整膝关节和切断膝关节之间的外旋（P = 0.24）或内旋（P = 0.12）轴向旋转无显著变化。完整膝关节和韧带切断膝关节的股骨假体上存在负荷均导致外旋显著变化（P < 0.0001）。加载和未加载状态之间的内旋无显著变化（P = 0.70）。完整膝关节的总胫骨旋转在屈膝0度时为31度，屈膝60度时为42度。这些结果表明，前交叉韧带在限制轴向旋转方面不起重要作用，并且单独的前交叉韧带断裂后旋转不稳定不是主要因素。
