Ann Rehabil Med.  2016 Apr;40(2):356-361. 10.5535/arm.2016.40.2.356.

Therapeutic Experience on Stance Control Knee-Ankle-Foot Orthosis With Electromagnetically Controlled Knee Joint System in Poliomyelitis

• Kim JH
• Ji SG
• Jung KJ
• Kim JH

• KMID: 2309937
• DOI: http://doi.org/10.5535/arm.2016.40.2.356

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.

Keyword

Rehabilitation; Poliomyelitis; Orthotic devices

MeSH Terms

Electric Stimulation
Exercise
Gait
Humans
Knee Joint*
Knee*
Lower Extremity
Magnets*
Middle Aged
Orthotic Devices*
Poliomyelitis*
Rehabilitation
Walking

Figure

• 

  Fig. 1 Kinematic data for left lower extremity using gait analysis for walking while wearing a SCKAFO with E-MAG system (blue line, post-rehabilitation; sky-blue line, pre-rehabilitation; red line, locked-knee state). SCKAFO, stance control knee-ankle-foot orthosis; E-MAG, electromagnetic.

• 

  Fig. 2 Stance control knee-ankle-foot orthosis (SCKAFO) with electromagnetic (E-MAG) system (white arrow, EMAG knee joint; black arrow, battery).

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