Denegar Craig R, Hertel Jay, Fonseca Jose
Department of Kinesiology and Orthopaedics & Rehabilitation, The Pennsylvania State University, University Park 16802, USA.
J Orthop Sports Phys Ther. 2002 Apr;32(4):166-73. doi: 10.2519/jospt.2002.32.4.166.
Retrospective study.
Assess range of motion, posterior talar glide, and residual joint laxity following ankle sprain in a population of athletes who have returned to unrestricted activity.
Lateral ankle sprains occur frequently in athletic populations and the reinjury rate may be as high as 80%. In an effort to better understand risk factors for reinjury, the sequelae to injury in a sample of college athletes were assessed.
Twelve athletes with a history of lateral ankle sprain within the last 6 months and who had returned to sport participation were tested. Only athletes who reported never injuring the contralateral ankle were included. The injured and uninjured ankles of subjects were compared for measures of joint laxity, ankle dorsiflexion range of motion, and posterior talar glide. Friedman's test of rank order was used to analyze the laxity measures and a MANOVA was used to assess the dorsiflexion and posterior talar glide measures.
Laxity was significantly greater at the talocrural and subtalar joints of the injured ankles. There were no significant differences in any of the ankle dorsiflexion measurements between injured and uninjured ankles, but posterior talar glide was significantly reduced in injured ankles as compared to uninjured ankles.
In our sample of subjects, residual ligamentous laxity was commonly found following lateral ankle sprain. Dorsiflexion range of motion was restored in the population studied despite evidence of restricted posterior glide of the talocrural joint. Although restoration of physiological range of motion was achieved, residual joint dysfunction persisted. Further research is warranted to elucidate the role of altered arthrokinematics after lateral ankle sprain.
回顾性研究。
评估已恢复无限制活动的运动员群体在踝关节扭伤后的活动范围、距骨后移以及残余关节松弛情况。
外侧踝关节扭伤在运动员群体中频繁发生，再损伤率可能高达80%。为了更好地理解再损伤的风险因素，对一组大学运动员样本中的损伤后遗症进行了评估。
对12名在过去6个月内有外侧踝关节扭伤病史且已恢复运动参与情况的运动员进行测试。仅纳入报告从未扭伤对侧踝关节的运动员。比较受试者受伤和未受伤踝关节的关节松弛度、踝关节背屈活动范围以及距骨后移情况。采用弗里德曼秩次检验分析松弛度测量结果，采用多变量方差分析评估背屈和距骨后移测量结果。
受伤踝关节的胫距关节和距下关节松弛度明显更大。受伤和未受伤踝关节的任何背屈测量值均无显著差异，但与未受伤踝关节相比，受伤踝关节的距骨后移明显减少。
在我们的受试者样本中，外侧踝关节扭伤后常见残余韧带松弛。尽管有证据表明胫距关节后移受限，但在所研究的群体中背屈活动范围已恢复。虽然实现了生理活动范围的恢复，但残余关节功能障碍仍然存在。有必要进行进一步研究以阐明外侧踝关节扭伤后关节运动学改变的作用。
