Kochan A, Markolf K L, More R C
J Bone Joint Surg Am. 1984 Dec;66(9):1460-5.
We recorded anterior-posterior force-versus-displacement curves at 20 and 90 degrees of flexion preoperatively and three years after major ligament reconstruction in patients with documented absence of the anterior cruciate ligament. Patients who had an extracapsular stabilization procedure alone showed no significant changes in laxity or stiffness of the injured knee in either position of flexion. Those who underwent reconstruction of the absent anterior cruciate ligament utilizing the middle or medial one-third of the patellar ligament in addition to the extracapsular procedure showed a significant decrease in anterior laxity and increase in anterior stiffness of the injured knee at 20 degrees of flexion. These changes in stability were not observed at 90 degrees of flexion. Six patients with a cruciate substitution had improved laxity and stiffness values at one year postoperatively which were unchanged at three years. At three-year follow-up the increases in activity scores, decreased feelings of giving-way and pain, and elimination of the pivot shift were comparable in both groups of patients.
我们记录了术前以及在记录显示前交叉韧带缺失的患者进行主要韧带重建三年后，膝关节在屈曲20度和90度时的前后向力-位移曲线。仅接受关节外稳定手术的患者，在两个屈曲位置，受伤膝关节的松弛度或刚度均无显著变化。那些除关节外手术外还利用髌韧带中三分之一或内侧三分之一重建缺失前交叉韧带的患者，在屈曲20度时，受伤膝关节的前向松弛度显著降低，前向刚度增加。在屈曲90度时未观察到这些稳定性变化。六名进行交叉韧带替代的患者术后一年时松弛度和刚度值有所改善，三年时保持不变。在三年随访时，两组患者的活动评分增加、打软腿和疼痛感觉减轻以及轴移消除情况相当。
