Engineering design review of stance-control knee-ankle-foot orthoses.
Engineering design review of stance-control knee-ankle-foot orthoses.
复制标题
姿态控制膝踝足矫形器的工程设计审查。
DOI：
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发表时间：
2009
影响因子：
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通讯作者：
J. Kofman
中科院分区：
文献类型：
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作者：
T. Yakimovich;E. Lemaire;J. Kofman
股四头肌无力的人通常会使用膝踝足矫形器，在步态的站立和摆动阶段将膝盖锁定在完全伸展状态。锁定膝盖会导致异常的步态模式，其特征是摆动期间髋部远足和腿部环绕。姿态控制膝踝足矫形器（SCKAFO）是一种新型矫形器，它允许摆动时膝关节自由运动，同时在站立时抵抗膝关节屈曲，从而在负重时支撑肢体。本文研究了各种 SCKAFO 设计，讨论了现有的设计限制，并确定了剩余的设计挑战。已经发布了多种包含不同锁定机制的商用 SCKAFO。初步的步态研究表明一些设备很有前途。然而，一些 SCKAFO 的一个重要功能限制是依赖特定的关节角度在站立和摆动模式之间切换。在新的矫形器设计中必须考虑重要的设计因素，例如尺寸、重量和噪音，以确保广泛的消费者接受。
Persons with quadriceps muscle weakness are often prescribed a knee-ankle-foot orthosis that locks the knee in full extension during both stance and swing phases of gait. Locking the knee results in abnormal gait patterns characterized by hip hiking and leg circumduction during swing. The stance-control knee-ankle-foot orthosis (SCKAFO), a new type of orthosis, has emerged that permits free knee motion during swing while resisting knee flexion during stance, thereby supporting the limb during weight-bearing. This article examines various SCKAFO designs, discuss the existing design limitations, and identify remaining design challenges. Several commercial SCKAFOs have been released that incorporate different locking mechanisms. Preliminary gait studies have shown some devices to be promising; however, an important functional limitation in some SCKAFOs is dependence on specific joint angles to switch between stance and swing modes. Important design factors such as size, weight, and noise must be considered in new orthosis designs to ensure wide consumer acceptance.