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KMID : 1020120130110010039
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Journal of the Korean Academy of Clinical Electrophysiology
2013 Volume.11 No. 1 p.39 ~ p.44
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Changes in Lower Extremity Joint Angles after Total Knee Replacement
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Kim Sang-Yeong
Yoon Se-Won
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Abstract
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Purpose : The purpose of present study is to evaluate the joint angles of legs in the standing posture for six patients with unilateral knee osteoarthritis. Methods : The participants underwent unilateral total knee replacement. A motion analysis was used to measure the joint angles of the hip, knee, and ankle. The measurements were taken before the surgery, one week and two weeks after the surgery. Both sides of the legs were evaluated. Results : This result showed that after a certain healing period, both hip joint angles showed a significant difference while there was no significant difference in the knee and ankle joint angles. After surgery, the angle of ankle dorsiflexion was smaller on the operated side than the opposite side compared to the pre-surgery measurements. Conclusion : After surgery, the asymmetry in a standing position left unchanged due to contracture of the knee joint and tightness in the hamstring muscle. Therefore, when physiotherapists plan an initial exercise programs for TKR patients, it is essential to apply adequate exercises which consider the contracture of the leg joints.
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KEYWORD
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Total knee displacement , Joint angle , Exercise
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