A comparison of the clinical and radiographic results of press fit condylar rotating-platform high-flexion and low contact stress mobile bearing prosthesis in total knee arthroplasty: Short term results
- Authors
- Nam, S.W.; Lee, Y.S.; Kwak, J.H.; Kim, N.K.; Lee, B.K.
- Issue Date
- Mar-2012
- Publisher
- Korean Knee Society
- Keywords
- Knee; Low contact stress; Osteoarthritis; PFC Sigma RP-F; Total knee arthroplasty
- Citation
- Knee Surgery and Related Research, v.24, no.1, pp.7 - 13
- Journal Title
- Knee Surgery and Related Research
- Volume
- 24
- Number
- 1
- Start Page
- 7
- End Page
- 13
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82473
- DOI
- 10.5792/ksrr.2012.24.1.7
- ISSN
- 2234-0726
- Abstract
- Purpose: This study compared the results of rotating-platform high-flexion (RP-F) total knee arthroplasty with low contact stress (LCS) for clinical and radiographical assessment after a short-term period. Materials and Methods: 68 total knee arthroplasties using a RP-F and LCS system were analyzed retrospectively. Thirty-five of the 68 were osteoarthritic knees and were followed-up for more than 2 years. The clinical evaluation included range of motion (ROM), Knee Society Knee Score and Function Score (KSKS and KSFS), tailor position and kneeling. The radiographic evaluation included femorotibial angle, position of implants, radiolucent line and position of patella. Results: The postoperative ROM, KSKS, and KSFS improved statistically in both implants. Comparing RP-F with LCS there were statistically no differences in ROM (p=0.863), KSKS (p=0.835), KSFS (p=0.535) and tailor position (p=0.489). There were no significant radiographic differences. Conclusions: Total knee arthroplasty with RP-F and LCS showed similar clinical and radiographic results; it also showed excellent and predictable results at the short-term follow up. However, in RP-F there was 1 case of early osteolysis, 1 case of patella clunk syndrome and 1 case of painful patella crepitus; therefore, further case studies and follow-up are needed. © 2012. THE KOREAN KNEE SOCIETY.
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