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Short term outcome comparative study of total knee arthroplasty, rotating platform (mobile bearing) versus fixed bearing (congruent) knee designs

Author(s): S. Hari Prasad | Umapathy Chowdary | C. Kamaraj | P.K.S. Kumar

Journal: Al Ameen Journal of Medical Sciences
ISSN 0974-1143

Volume: 06;
Issue: 03;
Start page: 253;
Date: 2013;
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Keywords: Total knee arthroplasty | rotating plate | fixed bearing | clinical outcome

Background: Various long term studies have been done independently on both Rotating platform and fixed bearing prosthesis, but only few studies, are available comparing the two prosthesis, hence this study has been done to compare Rotating platform (mobile bearing) versus Fixed bearing in patients undergoing total knee arthroplasties, with regard to clinical and radiographic outcomes. Method: This randomized prospective study aims to compare the effectiveness and efficiency of a standard Rotating platform(mobile bearing) versus Fixed bearing prosthesis in primary TKA, and to evaluate clinical and radiological outcome, in consecutive primary osteoarthritis patients getting admitted for primary TKR at our hospital. We included 32 patients (16 in each group) who were randomly selected, operated and both the groups were followed in prospective manner for 1 year and data collected was assessed by statistical methods. Results: The mean knee society knee scores in fixed bearing and mobile bearing total knee replacement, at the end of 1 year were 91.75 and 92.12 respectively and the mean knee society function scores in fixed bearing and mobile bearing total knee replacement, at the end of 1 year were 79.06 and 79.37 respectively in our study P VALUE (ns
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