Gait mechanics after ACL reconstruction: implications for the early onset of knee osteoarthritis
Gait mechanics after ACL reconstruction: implications for the early onset of knee osteoarthritis
复制标题
DOI：
10.1136/bjsm.2008.052522
复制
发表时间：
2009-05-01
影响因子：
18.4
通讯作者：
Underwood, F.
中科院分区：
文献类型：
--
作者：
Butler, R. J.;Minick, K. I.;Underwood, F.
背景：前十字韧带（ACL）断裂的个体患早发性膝骨关节炎（OA）的风险增加。该疾病早期发病的机制尚不清楚。先前已通过计算步态期间的膝内外展力矩来检查膝关节 OA 的进展。然而，尚未对 ACL 重建后的个体进行膝关节力矩作为早期膝关节 OA 疾病进展的潜在机制进行检查。目的：确定接受过 ACL 重建的个体是否表现出可能与膝关节 OA 进展相关的步态力学改变。方法：总共有 17 名之前接受过 ACL 重建的人参加了这项研究。招募匹配的对照组进行比较。所有参与者都以有意的步行速度进行步态分析，以检查先前与膝关节 OA 进展相关的变量，主要是步态期间的内部峰值膝外展时刻。进行方差分析的一种方法是检查两组之间步态力学的差异。所有关节力矩均计算为内部力矩。结果：与对照组相比，ACL 的峰值膝外展力矩增加了 21% (p = 0.04)。在额面膝关节或髋关节力学方面没有发现其他差异。结论：似乎接受过 ACL 重建的个体表现出膝关节峰值外展力矩增加，这可能建立了该人群中膝关节 OA 早期发病的潜在机制。
Background: Individuals who sustain a rupture of the anterior cruciate ligament (ACL) are at an increased risk for developing early-onset knee osteoarthritis (OA). The mechanism behind the early onset of the disease is still unknown. Knee OA progression has been previously examined by calculating the internal knee-abduction moment during gait. However, knee-joint moments have not been examined in individuals after ACL reconstruction as a potential mechanism for disease progression in early knee OA.Objective: To determine if individuals who have undergone ACL reconstruction exhibit altered gait mechanics that may be associated with knee OA progression.Methods: In total, 17 people who had previously undergone ACL reconstruction were enrolled in the study. A matched control group was recruited for comparison. All participants underwent gait analysis at an intentional walking speed to examine variables previously associated with knee OA progression, primarily the internal peak knee-abduction moment, during gait. One way ANOVAs were performed to examine differences in gait mechanics between the two groups. All joint moments were calculated as internal moments.Results: The peak knee-abduction moment was increased by 21% in the ACL compared with the control group (p = 0.04). No other differences were seen in frontal plane knee or hip mechanics.Conclusion: It seems that individuals who have undergone ACL reconstruction exhibit an increased peak knee-abduction moment that may establish a potential mechanism of the earlier onset of knee OA in this population.