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Do High-Flexion Total Knee Designs Increase the Risk of Femoral Component Loosening?

Title
Do High-Flexion Total Knee Designs Increase the Risk of Femoral Component Loosening?
Authors
Kim Y.-H.Park J.-W.Kim J.-S.
Ewha Authors
김영후김준식박장원
SCOPUS Author ID
김영후scopus; 김준식scopus; 박장원scopus
Issue Date
2017
Journal Title
Journal of Arthroplasty
ISSN
0883-5403JCR Link
Citation
vol. 32, no. 6, pp. 1862 - 1868
Keywords
clinical resultscomplicationsfemoral component looseninghigh-flexion total kneeposterior cruciate-substituting total kneestandard total knee
Publisher
Churchill Livingstone Inc.
Indexed
SCIE; SCOPUS WOS scopus
Abstract
Background The purpose of our prospective, randomized, long-term investigation is to compare the aseptic loosening rate of the femoral component of the total knee prosthesis and clinical and radiographic results of high-flexion posterior cruciate-substituting knee prosthesis or standard posterior cruciate-substituting knee prosthesis in the same patients. Methods There were 960 patients (mean age 71.3 years). The mean follow-up period was 13.2 years (range 10-14). The patients were assessed clinically and radiographically with rating systems of the Knee Society. Furthermore, Western Ontario and McMaster Universities Osteoarthritis questionnaire and ranges of knee motion were determined in both groups. Results In the high-flexion knee group, 2 knees (0.2%) had aseptic loosening of both femoral and tibial components. In the standard knee group, 2 knees (0.2%) had aseptic loosening of the femoral component only. The mean postoperative knee scores (97 vs 97 points), Western Ontario and McMaster Universities Osteoarthritis scores (19 vs 19 points), and range of knee motion (128° vs 129°) were not significantly different between the 2 groups. Two knees (0.2%) in the high-flexion knee group underwent a revision of both femoral and tibial components and 2 knees (0.2%) in the standard knee group had a revision of the femoral component only. Conclusion After a mean of 13.2 years of follow-up, this study did not show increased incidence of femoral component loosening in the high-flexion knee group. Furthermore, we found no significant differences between the 2 groups with regard to clinical or radiographic parameters or range of knee motion. © 2017 Elsevier Inc.
DOI
10.1016/j.arth.2017.01.026
Appears in Collections:
의과대학 > 의학과 > Journal papers
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