Gait Analysis of Knee Osteoarthritis before and after Total Knee Arthroplasty
Date Issued
2009
Date
2009
Author(s)
Tsai, Wen-Chi
Abstract
Introduction The total knee arthroplasty(TKA) is to resolve associated problems at the end stages osteoarthritis. High satisfactory rate has been reported in terms of pain relief and correction of deformity. However, the dynamic method for assessment of the clinical outcome, such as range of motion (ROM) of TKA has to be confirmed. The purpose of this study is to collect the kinetics and kinematics data of knee joint in health youths and senior, which is helpful for diagnosing the knee disorder, planning the treatment programs, outcome assessment of TKA and advancing the surgical methods. aterials and Methods The study was done in randomly selected patients who received dynamic measurement of knee function. Twenty healthy youths, thirteen healthy senior and 10 osteoarthritic patients participated in the study. Basic knee functions were evaluated in various dynamic activities, including non-weight bearing status of knee flexion(sitting), level walking, kneeling and squatting, using computerized gait analysis techniques (Vicon 512 system). Non-weight bearing knee range of motion and static alignment were measured using traditional goniometer, physical and neural examination was recorded. Regression analysis and the Student’s t-test were used to analyze the difference between the two groups, and a p-value < 0.05 was considered significant. esults By Vicon-512 system, the maximum knee flexion angles in youths at kneeling was 145.9±5.9 degrees, squatting 147.7±5.5 degrees, level walking 60.1±6.4 degrees, up stairs 95.1±8.5 degrees and down stairs 98.2±8.8 degrees, sitting without weight bearing in 137.2±6.3 degrees. Senior adult had significant poor than young in level walking and significant better in squatting. onclusion During weight bearing the quadriceps muscle dominated the knee flexion. However, in non-weight bearing status, hamstrings muscle was the main controller in knee flexion. By traditional static method in measuring knee function, which only presented a narrow scope of knee function, thus the knee function only unfold by the dynamic methods by gait analysis.
Subjects
total knee arthroplasty
gait analysis
range of motion
dynamic
Type
thesis
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