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Ann Rehabil Med. 2016 Apr;40(2):356-361. English. Case Report. https://doi.org/10.5535/arm.2016.40.2.356
Kim JH , Ji SG , Jung KJ , Kim JH .
Department of Physical Medicine and Rehabilitation, Eulji University Hospital & Eulji University School of Medicine, Daejeon, Korea. rehabkjh@hanmail.net
Department of Physical Therapy, Eulji University Hospital & Eulji University School of Medicine, Daejeon, Korea.
Abstract

A 54-year-old man with poliomyelitis had been using a conventional, passive knee-ankle-foot orthosis (KAFO) with a drop ring lock knee joint for about 40 years. A stance control KAFO (SCKAFO) with an electromagnetically controlled (E-MAG) knee joint system was prescribed. To correct his gait pattern, he also underwent rehabilitation therapy, which included muscle re-education, neuromuscular electrical stimulation, strengthening exercises for the lower extremities, and balance training twice a week for about 4 months. Both before and after rehabilitation, we conducted a gait analysis and assessed the physiological cost index in energy expended during walking in a locked-knee state and while he wore a SCKAFO with E-MAG. When compared with the pre-rehabilitation data, the velocity, step length, stride length, and knee kinematic data were improved after rehabilitation. Although the SCKAFO with E-MAG system facilitated the control of knee motion during ambulation, appropriate rehabilitative therapy was also needed to achieve a normal gait pattern.

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