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Short-Term Results of Total Knee Arthroplasty with the NexGen LPS-Flex Prosthesis Takahiro Kojima 1 , Norinao Matsumoto 1 , Tatsuo Mae 1 , Tomoya Yamashita 1 1Department of Orthopaedic Surgery, Osaka Kosei-Nenkin Hospital Keyword: NexGen LPS-Flex® , total knee arthroplasty , TKA , 人工膝関節全置換術 , range of motion , ROM , 可動域 pp.1093-1096
Published Date 2004/8/1
DOI https://doi.org/10.11477/mf.1408100523
  • Abstract
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 We investigated the short-term outcome of 94 primary total knee arthroplasties (80 patients) performed with the NexGen LPS-Fle® xprosthesis, which has been designed to enable the knee to flex deeply. There were 12 men (13 knees) and 68 women (81 knees), and their mean age of at the time of the operation was 71 years (60 to 85). All patients has been diagnosed with osteoarthritis. The mean follow-up time was 18.7 months (12 to 30). The clinical outcome was evaluated based on the pre-and post-operative range of motion (ROM), Japanese Orthopaedic Association (JOA) knee rating score, and radiographic findings (femoro-tibial angle [FTA], radiolucent line, etc.). The mean degrees of knee flexion had improved significantly, from 118.9±23.3° preoperatively to 126.3±21.1° postoperatively. The JOA knee rating score also improved significantly, from 56.9±10.8 to 82.7±7.3, and the FTA had changed from 183.6±8.9° to 170.5±4.6°. A radiolucent line was present on 7 knees around the tibial component. Thus, the short-term outcome of total knee arthroplasty with the NexGen LPS-Flex® prosthesis was satisfactory, but careful long-term follow of these cases is necessary.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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