The relationship between knee strength and functional stability before and after anterior cruciate ligament reconstruction
The relationship between knee strength and functional stability before and after anterior cruciate ligament reconstruction
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DOI：
10.1016/s0736-0266(02)00160-2
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发表时间：
2003-03-01
影响因子：
2.8
通讯作者：
Keays, AC
中科院分区：
文献类型：
--
作者：
Keays, SL;Bullock-Saxton, JE;Keays, AC
膝关节的功能稳定性取决于完整的韧带系统和及时有效的支撑肌肉收缩。本研究的目的是评估31例单侧前交叉韧带断裂患者术前和术后肌力与功能稳定性之间的关系。所有受试者均接受了半腱和股薄肌腱重建手术。以60%和120度/s的运动速率进行股四头肌和腘绳肌的等速肌力评估。功能稳定性通过五项功能稳定性试验期间的性能确定，包括穿梭运行、侧步、卡里奥卡、单次和三次跳试验。分别对术前和术后数据进行Pearson相关系数统计。这些分析表明，两种测试速度下的股四头肌力量指数与术前两跳测试之间（p < 0.007）以及两种速度下的股四头肌力量指数与术后所有五项功能测试之间（p < 0.01）存在显著正相关。使用Steiger公式评估，术后股四头肌强度指数与三项功能测试之间的相关性与术前相比显着增加（p < 0.05）。术前、术后腘绳肌力量指标与功能评分无显著相关性。本研究表明，股四头肌力量指标与手术前后的功能稳定性之间存在显著相关性，而腘绳肌力量指标与功能稳定性之间的相关性不显著。(C)2002骨科研究学会。由爱思唯尔科技有限公司出版。保留所有权利。
Functional stability of the knee is dependent on an intact ligamentous system and the timely and efficient contraction of supporting musculature. The aim of this study was to assess the relationship between muscle strength and functional stability in 31 patients pre- and post-operatively, following a unilateral anterior cruciate ligament rupture. All subjects underwent reconstructive surgery using semitendonosis and gracilis tendons. Isokinetic strength assessment of quadriceps and hamstring muscles was performed at a rate of movement of 60% and 120degrees/s. Functional stability was determined by performance during five functional stability tests that included the shuttle run, side step, carioca, single and triple hop tests. Pearson's correlation coefficient statistics were applied to pre-operative and post-operative data respectively. These analyses demonstrated a significant positive correlation between quadriceps strength indices at both testing speeds and the two hop tests pre-operatively (p's < 0.007) and between quadriceps strength indices at both speeds and all five functional tests post-operatively (p's < 0.01). Assessed using Steiger's formula, there was a significant increase in the correlation between quadriceps strength indices and three functional tests post-operatively compared to pre-operatively (p < 0.05). No significant correlation between hamstring strength indices and functional scores existed pre- or post-operatively. This study has shown a significant correlation exists between quadriceps strength indices and functional stability both before and after surgery, this relationship does not reach significance between hamstring strength indices and functional stability. (C) 2002 Orthopaedic Research Society. Published by Elsevier Science Ltd. All rights reserved.