Sutherland D H
Instr Course Lect. 1993;42:539-43.
In cerebral palsy, imbalance of the invertor and evertor muscles can result in varus alignment of the foot. The primary functional problems of varus foot are weightbearing instability and/or difficulty in foot clearance in swing phase. Additional problems include difficulties in shoe fitting, abnormal shoe wear, and unacceptable cosmesis. Gait studies have shed some light on the alterations of the muscle activity that can cause this problem but have fallen short of providing clear guidelines for treatment of this common problem. Confusion exists because dynamic electromyography does not give definitive information about the quantity of muscle tension and because the analyses have not included movement measurements that distinguish between the movements that occur in the hind foot and forefoot. Technical limitations that have made it impossible to obtain this information are rapidly disappearing, and the way is opening up for biomechanical studies of foot and ankle function that will allow greater precision in the selection of surgical treatment for varus foot.
在脑瘫中，内翻肌和外翻肌失衡可导致足部内翻畸形。内翻足的主要功能问题是负重不稳定和/或摆动期足部离地困难。其他问题包括鞋类适配困难、异常的鞋类磨损以及外观不佳。步态研究已经揭示了一些可能导致该问题的肌肉活动变化，但尚未为这个常见问题的治疗提供明确的指导方针。存在混淆的原因是动态肌电图无法提供关于肌肉张力大小的确切信息，并且分析未包括区分后足和前足运动的运动测量。曾使得无法获取这些信息的技术限制正在迅速消失，为足踝功能的生物力学研究开辟了道路，这将使内翻足手术治疗的选择更加精确。
