The effects of knee pain on knee contact force and external knee adduction moment in patients with knee osteoarthritis

JOURNAL OF BIOMECHANICS

卷:123

Article

Yamagata, Momoko^1,2,3  Taniguchi, Masashi²  Tateuchi, Hiroshige⁴  Kobayashi, Masashi⁵  Ichihashi, Noriaki² 

[1] Kobe Univ, Grad Sch Human Dev & Environm, Dept Human Dev, Nada Ku, 3-11 Tsurukabuto, Kobe, Hyogo 6570011, Japan

[2] Kyoto Univ, Grad Sch Med, Dept Phys Therapy, Human Hlth Sci,Sakyo Ku, 53 Kawahara Cho, Kyoto 6068507, Japan

[3] Japan Soc Promot Sci, Chiyoda Ku, 5-3-1 Kojimachi, Tokyo 1020083, Japan

[4] Kyoto Univ, Grad Sch Med, Dept Prevent Phys Therapy, Human Hlth Sci, Kyoto, Japan

[5] Kobayashi Orthopaed Clin, Minami Ku, 50-35 Kuzetakada Cho, Kyoto 6018211, Japan

关键词: Knee osteoarthritis;    Musculoskeletal model;    Gait;    Knee contact force;    Knee adduction moment;   

DOI  :  10.1016/j.jbiomech.2021.110538

来源: Elsevier

【 摘 要 】

Knee osteoarthritis (OA) is a major cause of knee pain, leading to physical dysfunction. External knee adduction moment (KAM), a surrogate measure of knee contact force (KCF) in the medial compartment, is related to knee pain, but the association between KCF and pain severity remains unclear. This study aimed to reveal the differences in KCF due to pain severity. Twenty-eight patients with knee OA were evaluated knee symptoms including pain severity via the Knee Society Score. Based on the median symptom score, 17 points in this study, subjects were classified as having Mild symptomatic OA (n = 15) and Severe symptomatic OA (n = 13). Subjects walked three times at a comfortable speed along a six-meter walkway, and we calculated KAM during the stance phase. KCF magnitude and distribution were also computed using the subject-specific musculoskeletal model, considering physical characteristics such as the femorotibial angle measured by X-ray. No differences in physical characteristics such as femorotibial angle and gait speed were found by symptom severity, whereas KAM and medial KCF at minimum and second peak in Severe symptomatic OA patients were significantly greater than those in Mild symptomatic OA. A significant medial shift of KCF in Severe symptomatic OA was also seen at first peak and minimum. Severe symptomatic OA had a greater medial KCF and medial shift of KCF. Detailed evaluations of KCF magnitude and distribution in addition to KAM would provide crucial information on knee contact force in relation to symptom severity.& nbsp; (c) 2021 Elsevier Ltd. All rights reserved.

【 授权许可】

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