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Journal of the Korean Academy of Rehabilitation Medicine 2007;31(6):725-729.
The Effect of Knee Osteoarthritis and Unilateral Total Knee Arthroplasty on Balance.
Cho, Hyung Jun , Cho, Dong Soo , Park, Seung Buhm , Yun, Seo Ra , Jung, Kwang Ik
Department of Rehabilitation Medicine, Gwangju Veterans Hospital, Korea. jlighty@hanmail.net
슬관절 골관절염과 편측 슬관절 전치환술이 균형능력에 미치는 영향
조형준, 조동수, 박승범, 윤서라, 정광익
광주보훈병원 재활의학과
Abstract
Objective
To assess the effect of knee osteoarthritis (OA) and unilateral total knee arthroplasty (TKA) on balance.
Method
Fifteen patients with bilateral knee OA and fifteen patients with unilateral TKA and fifteen healthy adults were assessed by computerized dynamic posturography. The posturography test was performed 3 times at 6 different simulated conditions. We evaluated anteroposterior sway of center of gravity and strategy score of OA group, TKA group and healthy adults group. We compared the equilibrium scores of each group with normal data reported previously. We also compared strategy scores of each group.
Results
Patients with bilateral knee OA and unilateral TKA showed lower equilibrium scores than normal one at the condition 4, 5, 6. But patients with unilateral TKA did not show significant equilibrium score difference as compared with bilateral knee OA patients. Patients with bilateral knee OA and unilateral TKA showed significantly lower strategy scores than normal one at the condition 4, 5, 6 (p<0.05). But patients with unilateral TKA did not show significant strategy score difference as compared with bilateral knee OA patients.
Conclusion
Patients with bilateral knee OA showed deficit of dynamic postural control due to proprioceptive dysfunction. And TKA did not affect proprioceptive change in knee osteoarthritis. (J Korean Acad Rehab Med 2007; 31: 725-729)
Key Words: Knee osteoarthritis, Total knee arthroplasty, Proprioception, Computed dynamic posturography


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