Van de Velde Samuel K, DeFrate Louis E, Gill Thomas J, Moses Jeremy M, Papannagari Ramprasad, Li Guoan
Bioengineering Laboratory, Department of Orthopedic Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts 02114, USA.
Am J Sports Med. 2007 Feb;35(2):294-300. doi: 10.1177/0363546506294079. Epub 2006 Nov 7.
Although anterior cruciate ligament deficiency has been shown to lead to joint degeneration, few quantitative data have been reported on its effect on soft tissue structures surrounding the knee joint.
Anterior cruciate ligament deficiency will alter the deformation of both collateral ligaments during in vivo weight-bearing knee function from 0 degrees to 90 degrees.
Controlled laboratory study.
Six patients who had acute anterior cruciate ligament injury in 1 knee with the contralateral side intact participated in this study. Using magnetic resonance and dual orthogonal fluoroscopic imaging techniques, we measured the length of the fiber bundles of the superficial medial collateral ligament, deep medial collateral ligament, and lateral collateral ligament of the 6 patients; the healthy contralateral knee of each patient served as a control.
Anterior cruciate ligament injury caused a significant elongation of the fiber bundles of the superficial and deep medial collateral ligament at every flexion angle. In contrast, the lateral collateral ligament fiber bundles shortened after anterior cruciate ligament injury.
The altered deformations of the collateral ligaments associated with the changes in tibiofemoral joint kinematics after anterior cruciate ligament injury demonstrate that deficiency of 1 of the knee joint structures upsets the in vivo knee homeostasis.
Restoring normal knee kinematics after anterior cruciate ligament reconstruction is critical to restore the normal function of the collateral ligaments.
尽管已表明前交叉韧带损伤会导致关节退变，但关于其对膝关节周围软组织结构影响的定量数据报道较少。
前交叉韧带损伤会改变膝关节在0度至90度负重功能下内外侧副韧带的变形情况。
对照实验室研究。
6例患者一侧膝关节急性前交叉韧带损伤，对侧膝关节正常，参与本研究。使用磁共振成像和双正交荧光透视成像技术，测量6例患者的浅内侧副韧带、深内侧副韧带和外侧副韧带纤维束的长度；每位患者对侧健康膝关节作为对照。
前交叉韧带损伤导致在每个屈曲角度下浅内侧副韧带和深内侧副韧带纤维束显著延长。相比之下，前交叉韧带损伤后外侧副韧带纤维束缩短。
前交叉韧带损伤后，副韧带变形改变与胫股关节运动学变化相关，表明膝关节结构之一的缺失破坏了膝关节在体内的稳态。
前交叉韧带重建后恢复正常膝关节运动学对恢复副韧带正常功能至关重要。
