The kinematic analysis of female subjects after double-bundle anterior cruciate ligament reconstruction during single-leg squatting
The kinematic analysis of female subjects after double-bundle anterior cruciate ligament reconstruction during single-leg squatting
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DOI：
10.1136/bjsports-2014-093494.304
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发表时间：
2013-03
影响因子：
1.7
通讯作者：
Junya Yamazaki;T. Muneta;Young‐Jin Ju;H. Koga;Toshiyuki Morito;I. Sekiya
中科院分区：
文献类型：
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作者：
Junya Yamazaki;T. Muneta;Young‐Jin Ju;H. Koga;Toshiyuki Morito;I. Sekiya
目的探讨女性前交叉韧带(ACL)双束重建后单腿蹲坐时的运动学特征。方法对女性前交叉韧带(ACL)重建后单腿蹲坐进行三维运动分析。我们在28名女性前交叉韧带重建受试者中，使用电磁装置评估了单腿蹲下时骨盆、大腿和小腿之间的相对角度。结果女性受试者重建前交叉韧带后，患侧与健侧相比，患侧髋关节内收明显增加，膝关节内翻明显减少。前十字韧带重建的女性受试者与健康女性对照组相比，前交叉韧带重建后患侧患肢的髋关节屈曲明显减少，髋关节外旋明显增加，髋关节内收增加，膝关节屈曲增加。双束前交叉韧带重建术不能完全恢复女性患肢的正常运动学，与女性受试者和健康女性对照的健侧肢体相比，女性受试者的双侧前交叉韧带重建术不能完全恢复女性患肢的正常运动学。在未来的研究中，在单腿蹲下时恢复重建的前交叉韧带的正确对齐有望减少前交叉韧带的再损伤，并有助于安全地恢复运动。
BackgroundThe kinematic characteristics of female anterior cruciate ligament (ACL)-injured subjects were recognized in our previous study using an electromagnetic device comparing both female control groups and male ACL-injured subjects during single-leg squatting.ObjectiveTo assess the kinematic characteristics of female subjects after double-bundle ACL reconstruction during single-leg squatting.MethodsThree-dimensional motion analysis was performed for single-leg squatting in female subjects after ACL reconstruction. We evaluated the relative angles between the pelvis, thigh, and lower leg using an electromagnetic device during single-leg squatting in 28 female subjects with ACL reconstruction. All patients included in this study restored their sports performance level to 90 % or higher.ResultsComparing the involved leg to the uninjured leg of female subjects after ACL reconstruction, the involved leg demonstrated significantly more hip adduction and less knee varus than the uninjured leg. Comparing the anterior cruciate ligament-reconstructed female subjects to the healthy female controls, the involved leg after ACL reconstruction demonstrated significantly less hip flexion, more hip external rotation, more hip adduction, and more knee flexion than the dominant leg of the control group.ConclusionThis kinematic study exhibited kinematic characteristics of ACL-reconstructed knees of female subjects. Double-bundle anterior cruciate ligament reconstruction could not quite restore the normal kinematics of female-involved legs compared with both uninjured legs of female subjects and healthy female controls. In future studies, restoring the correct alignment of ACL reconstructed knee during single-leg squatting would be expected to reduce ACL re-injury and to assist a safe return to sport activities.