Gait Analysis in the Patients with Osteoarthritis of the Knee.
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概要
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The purpose of this study was to quantitatively investigate the gait of the patients with varus osteoarthritic knees by measuring the floor reaction force. Analysis was carried out on 11 patients (mean age 65.0 years). As control, age matched 14 normal volunteers (mean age 64.9 years) without knee symptoms were analysed with the same method. In fore-and-after component of floor reaction force, the magnitudes of both peaks were reduced and the first peak appeared earlier in the stance phase of the osteoarthritic knees. In vertical component of floor reaction force, osteoarthritic knees showed reduced magnitudes of two common peaks which could be seen in the heel contact and toe off phase. However, force between these peaks was maintained higher in the patient group. Furthermore, we compared the patients before and after knee surgery (total knee arthroplasty 13 joints, high tibial osteotomy : 9 joints), and the effect of the laterally wedged insoles was also tested. We used the laterally wedged insoles of 10 mm height in this study. The value of impulse of lateral component of floor reaction force was 0.063 ± 0.016 in the patient group and 0.041 ± 0.007 in the control group, and this difference was statistically significant (<I>p</I><0.01). Both the use of laterally wedged insoles and knee surgery reduced the value of impulse to 0.038 ± 0.010 (<I>p</I>< 0.01) and 0.040 ± 0.004 (<I>p</I><0.01), respectively. The impulse of lateral component of floor reaction force seemed to be a useful index for quantitative analysis of the gait.
- 社団法人 日本リハビリテーション医学会の論文
社団法人 日本リハビリテーション医学会 | 論文
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