期刊
ANNALS OF THE ROYAL COLLEGE OF SURGEONS OF ENGLAND
卷 100, 期 4, 页码 267-274出版社
ROYAL COLL SURGEONS ENGLAND
DOI: 10.1308/rcsann.2017.0226
关键词
Oxford knee; LCS mobile bearing; Gait analysis; Unilateral knee arthroplasty
类别
INTRODUCTION The aim of this study was to compare kinetical data from gait analysis of patients who have undergone total and uni-condylar knee replacement. MATERIALS AND METHODS Thirteen patients with unilateral total knee arthroplasty (TKA) and 13 unicondylar knee arthroplasty (UKA), were included, all performed by the same surgeon more than one year prior. The Vicon gait analysis system was used. Statistical power was calculated using SPSS. RESULTS No significant difference was found in the spatiotemporal parameters of gait and survival years of the knee prosthesis between the two groups. The UKA group was found to have significantly larger moments than the TKA group in knee adduction on the operated side and knee flexion moment on the unoperated side during the loading phase. The maximum and minimum sagittal plane moments of the operated sides in the TKA group were significantly lower than the unoperated side. The difference was most significant at pre-swing. The maximum and minimum moments on the operated sides in the UKA group were significantly lower for the knee flexion and adduction moments when compared with the unoperated side and were most prevalent during the loading phase. CONCLUSIONS These results are relevant in terms of prosthesis wear. The TKA knees had smaller magnitude moments than the UKA knees in the sagittal and corona! planes. This could explain the higher revision rates for UKA. In both groups, the nonoperated knees had significantly larger moments than the operated knees, which implies that after unilateral knee replacement of either type, the non-operated knee is being put under greater stress.
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