Does anterior cruciate ligament reconstruction restore normal knee kinematics? A prospective MRI analysis over two years
Does anterior cruciate ligament reconstruction restore normal knee kinematics? A prospective MRI analysis over two years
复制标题
DOI：
10.1302/0301-620x.88b3.16787
复制
发表时间：
2006-03-01
影响因子：
--
通讯作者：
Woods, KR
中科院分区：
文献类型：
--
作者：
Scarvell, JM;Smith, PN;Woods, KR
本前瞻性研究采用磁共振成像技术记录自体腘绳肌前交叉韧带重建前后的矢状面胫股运动学。20例前交叉韧带损伤患者，在放松状态下，承受150n的负荷，进行闭式链腿按压。通过磁共振扫描记录膝关节屈曲0度至90度之间的胫踝接触模式。所有测量均在术前进行，并在12周和2年后重复。重建后，使用KT 1000关节计测量的平均被动前关节松弛度为2.1 MM (SD 2.3)，平均辛辛那提评分为90 （SD 11）。术前损伤双膝内侧和外侧接触模式位于胫骨平台后方（p = 0.014），但在术后12周（p = 0.117）和2年（p = 0.909）不再有差异。然而，随着时间的推移，重建和健康的对侧膝关节的运动学都发生了变化。两年时，接触模式显示屈曲时股骨外侧髁后侧移位较少（p < 0.01）。
This prospective study used magnetic resonance imaging to record sagittal plane tibiofemoral kinematics before and after anterior cruciate ligament reconstruction using autologous hamstring graft. Twenty patients with anterior cruciate ligament injuries, performed a closed-chain leg-press while relaxed and against a 150 N load. The tibiolemoral contact patterns between 0 degrees to 90 degrees of knee flexion were recorded by magnetic resonance scans. All measurements were performed pre-operatively and repeated at 12 weeks and two years.Following reconstruction there was a mean passive anterior laxity of 2.1 MM (SD 2.3), as measured using a KT 1000 arthrometer, and the mean Cincinnati score was 90 (SD 11) Of 100. Pre-operatively, the medial and lateral contact patterns of the injured knees were located posteriorly on the tibial plateau compared with the healthy contralateral knees (p = 0.014), but were no longer different at 12 weeks (p = 0.117) or two years post-operatively (p = 0.909). However, both reconstructed and healthy contralateral knees showed altered kinematics over time. At two years, the contact pattern showed less posterior translation of the lateral femoral condyle during flexion (p < 0.01).