Kinematic and kinetic evaluation of the ankle joint before and after tendo achilles lengthening in patients with spastic diplegia
Kinematic and kinetic evaluation of the ankle joint before and after tendo achilles lengthening in patients with spastic diplegia
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DOI：
10.1097/01.bpo.0000161094.08221.ac
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发表时间：
2005-07-01
影响因子：
1.7
通讯作者：
Harris, G
中科院分区：
文献类型：
--
作者：
Lyon, R;Liu, XC;Harris, G
14例患者，平均年龄为9.1岁（范围4.1-16.6岁），痉挛性双瘫脑性瘫痪进行了评估之前和之后跟腱延长术（TAL）。TAL后的随访（通过步态分析）范围为8至30个月。具有六个CCD摄像机和两个AMTI测力板的Vicon运动分析系统提供了关节运动和力矩的三维测量。TAL手术导致踝关节的正常被动背屈，膝关节处于0 °伸展和90 °屈曲，摆动阶段期间跖屈减少，并且过早跖屈肌力矩减少。然而，在站立中期，踝关节背屈比正常情况下大10度，表明跟骨步态模式较轻。TAL手术改善了脑瘫患者的下肢功能，运动学和动力学分析均证实了这一点。
Fourteen patients, at a mean age of 9.1 years (range 4.1-16.6 years), who had spastic diplegic cerebral palsy were evaluated before and after tendo Achilles lengthening (TAL). Follow-up (by gait analysis) after TAL ranged from 8 to 30 months. A Vicon motion analysis system with six CCD cameras and two AMTI force plates provided three-dimensional measurements of joint motion and moments. The TAL procedure resulted in normal passive dorsiflexion of the ankle joint with the knee at 0 degrees of extension and 90 degrees of flexion, reduced plantarflexion during swing phase, and reduced premature plantar-flexor moment. However, 10 degrees greater than normal dorsiflexion of the ankle joint during mid-stance phase was indicative of a mild calcaneal gait pattern. The TAL procedure improved lower extremity function as documented by both kinematic and kinetic analysis in cerebral palsy.