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Comparison of ultra-congruent mobile- and fixed-bearing navigation-assisted total knee arthroplasty with minimum 5-year follow-up.

Title
Comparison of ultra-congruent mobile- and fixed-bearing navigation-assisted total knee arthroplasty with minimum 5-year follow-up.
Author
김성환
Keywords
Total knee arthroplasty; Ultra-congruent bearing; Navigation system; Mobile bearing; Fixed bearing
Issue Date
2016-11
Publisher
SPRINGER
Citation
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, v. 24, Issue 11, Page. 3466-3473
Abstract
Purpose The purpose of this study was to compare the midterm outcomes between fixed and mobile ultra-congruent (UC) bearings in total knee arthroplasty (TKA). Methods This is a retrospective matched-pairs case–control study of patients who underwent primary navigation-assisted TKA with a minimum 5-year follow-up. A total of 182 cases involved the fixed UC bearing system as Group 1 and 101 cases involved mobile UC bearing system group as Group 2. After 1:1 matching, 73 knees in each group were enrolled. Clinical and radiographic outcomes were evaluated. Results The overall survival was 143 of 146 cases (97.9 %) at final follow-up, and 72 of 73 cases (96.3 %) in Group 1 and 71 of 73 cases (95.8 %) in Group 2 at final follow-up based on an endpoint of revision surgery. The reasons of revision TKA were periprosthetic fracture in Group 1, infection and bearing dislocation in Group 2. There was no statistical difference in Hospital for Special Surgery (HSS) scores, Knee Society Scores (KSS), WOMAC index score evaluations between groups. Conclusions This study demonstrated that the fixed-bearing UC prosthesis could provide satisfactory performance compared with that of the mobile-bearing UC prosthesis with minimum 5-year follow-up. The fixed-bearing UC prosthesis could be considered in navigation-assisted TKA with theoretical advantages of UC design. Level of evidence IV.
URI
https://link.springer.com/article/10.1007%2Fs00167-016-4147-5https://repository.hanyang.ac.kr/handle/20.500.11754/101212
ISSN
0942-2056; 1433-7347
DOI
10.1007/s00167-016-4147-5
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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