Biodynamics Research Laboratory, Department of Kinesiology and Center for Biomedical Engineering Systems, University of North Carolina at Charlotte, Charlotte, North Carolina.
Sports Health. 2010 Nov;2(6):452-9. doi: 10.1177/1941738110382392.
Lateral ankle sprains can manifest into chronic mechanical joint laxity when not treated effectively. Joint laxity is often measured through the use of manual stress tests, stress radiography, and instrumented ankle arthrometers.
To systematically review the literature to establish the influence of chronic ankle instability (CAI) on sagittal and frontal plane mechanical joint laxity.
Articles were searched with MEDLINE (1966 to October 2008), CINAHL (1982 to October 2008), and the Cochrane Database of Systematic Reviews (to October 2008) using the key words chronic ankle instability and joint laxity, functional ankle instability and joint laxity, and lateral ankle sprains and joint laxity.
To be included, studies had to employ a case control design; mechanical joint laxity had to be measured via a stress roentogram, an instrumented ankle arthrometer, or ankle/foot stress-testing device; anteroposterior inversion or eversion ankle-subtalar joint complex laxity had to be measured; and means and standard deviations of CAI and control groups had to be provided.
One investigator assessed each study based on the criteria to ensure its suitability for analysis. The initial search yielded 1378 potentially relevant articles, from which 8 were used in the final analysis. Once the study was accepted for inclusion, its quality was assessed with the PEDro scale.
Twenty-one standardized effect sizes and their 95% confidence intervals were computed for each group and dependent variable. CAI produced the largest effect on inversion joint laxity; 45% of the effects ranged from 0.84 to 2.61. Anterior joint laxity measures were influenced second most by CAI (effects, 0.32 to 1.82). CAI had similar but less influence on posterior joint laxity (effects, -0.06 to 0.68) and eversion joint laxity (effects, 0.03 to 0.69).
CAI has the largest effect with the most variability on anterior and inversion joint laxity measurements, consistent with the primary mechanism of initial injury.
未得到有效治疗的外侧踝关节扭伤可能会导致慢性机械性关节松弛。关节松弛通常通过使用手动压力测试、压力射线照相术和仪器化的踝关节关节测压计进行测量。
系统地回顾文献，以确定慢性踝关节不稳定（CAI）对矢状面和额状面机械性关节松弛的影响。
使用 MEDLINE（1966 年至 2008 年 10 月）、CINAHL（1982 年至 2008 年 10 月）和 Cochrane 系统评价数据库（2008 年 10 月）进行了文章检索，使用了关键词慢性踝关节不稳定和关节松弛、功能性踝关节不稳定和关节松弛、以及外侧踝关节扭伤和关节松弛。
纳入的研究必须采用病例对照设计；机械性关节松弛必须通过压力射线照相术、仪器化的踝关节关节测压计或踝关节/足部压力测试设备进行测量；必须测量前向内翻或外展踝关节-距下关节复合体松弛度；必须提供 CAI 和对照组的平均值和标准差。
一名调查员根据标准评估每项研究，以确保其适合分析。最初的搜索产生了 1378 篇可能相关的文章，其中 8 篇用于最终分析。一旦研究被接受纳入，就使用 PEDro 量表评估其质量。
为每个组和因变量计算了 21 个标准化效应量及其 95%置信区间。CAI 对踝关节内翻松弛的影响最大；45%的影响范围在 0.84 至 2.61 之间。前关节松弛度的测量受 CAI 的影响第二大（影响范围为 0.32 至 1.82）。CAI 对后关节松弛度（影响范围为-0.06 至 0.68）和外展关节松弛度（影响范围为 0.03 至 0.69）的影响相似，但较小。
CAI 对前向和内翻关节松弛度测量的影响最大，且具有最大的可变性，这与最初损伤的主要机制一致。
