Chinese Journal of Tissue Engineering Research

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Characteristics of dynamic balance function in patients with knee osteoarthritis

Li Qing, Xie Lian-hong, Yang Jian, Fan Li   

  1. Department of Physical Medicine and Rehabilitation, Shanghai Xuhui Central Hospital, Shanghai  200031, China
  • Online:2013-05-28 Published:2013-05-28
  • Contact: Yang Jian, Chief physician, Department of Physical Medicine and Rehabilitation, Shanghai Xuhui Central Hospital, Shanghai 200031, China dr.yj168@163.com
  • About author:Li Qing☆, M.D., Attending physician, Department of Physical Medicine and Rehabilitation, Shanghai Xuhui Central Hospital, Shanghai 200031, China qinglee126@126.com

Abstract:

BACKGROUND: Patients with knee osteoarthritis have decreased knee muscle strength and knee extensor muscle strength thus affecting the balance control ability.
OBJECTIVE: To explore the change characteristics of dynamic balance ability in knee osteoarthritis patients.
METHODS: Twenty-two knee osteoarthritis patients (knee osteoarthritis group) and 20 healthy adults (control group) were included. The dynamic balance ability was tested with dynamic balance device. The stability index, anterior/posterior stability index and medial/lateral stability index were measured. In limits of stability test, we measured direction control performance, average direction control performance, forward 
direction control performance, back direction control performance, left direction control performance, right direction control performance, forward/left direction control performance, forward/right direction control performance, back/left direction control performance, back/right direction control performance and limits of stability time.
RESULTS AND CONCLUSION: The total instability index, anterior/posterior stability index and medial/lateral stability index with eyes open or closed while standing with feet in the knee osteoarthritis group were higher than those in the control group (P < 0.01), and the average direction control performance, forward direction control performance, back direction control performance, left direction control performance and right direction control performance were lower than those in the control group, but the time for accomplish the test was increased significantly (P < 0.01). The results indicated the dynamic balance ability of the knee osteoarthritis patients was decreased.

Key words: bone and joint implants, clinical practice of bone and joint, knee osteoarthritis, posture, balance control ability, visual sensation, proprioceptive sensation, vestibular sensation, balance, osteoarthritis

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