Comparison of Modular Conventional and High-Flexion Posterior-Stabilized Total Knee Arthroplasties in the Same Patients at a Mean Follow-Up of 15 Years
- 주제(키워드) conventional total knee arthroplasty , high-flexion total knee arthroplasty , long-term outcome , posterior-stabilized knee prosthesis , same patient
- 등재 SCIE, SCOPUS
- 발행기관 Churchill Livingstone Inc.
- 발행년도 2020
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000165874
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.arth.2019.12.022
- PubMed https://pubmed.ncbi.nlm.nih.gov/31902619
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Background: As previous studies are limited to short-term clinical data on conventional and high-flexion total knee arthroplasties (TKAs), long-term clinical data on these TKAs remain unclear. Therefore, we evaluated long-term functional outcome, range of knee motion, revision rate, implant survival, and the prevalence of osteolysis after conventional and high-flexion TKAs in the same patients. Methods: The authors evaluated a cohort of 1206 patients with a mean age of 65.3 ± 7 years (range: 22-70) who underwent bilateral simultaneous sequential TKAs. One knee received a conventional TKA and the other received a high-flexion TKA. The mean duration of follow-up was 15.6 years (range: 14-17). Results: No significant differences were found between the 2 groups at the latest follow-up with respect to Knee Society score (93 vs 92 points, P =.765), pain score (45 vs 44 points, P =.641), range of knee motion (125° vs 126°, P =.712), and radiographic and computed tomography scan results. Furthermore, no significant revision rate differences were found between the 2 groups (1.3% for conventional TKA vs 1.6% for high-flexion TKA; P =.137). There was no osteolysis recorded in either group. The rate of survivorship free of implant revision or aseptic loosening was 98.7% (95% CI = 91-100) for conventional TKA and 98.4% (95% CI = 91-100) for high-flexion TKA at 17 years. Conclusion: At the latest follow-up, we were not able to demonstrate any significant difference between conventional and high-flexion TKAs with respect to functional outcome scores, range of knee motion, revision rate, implant survival, and prevalence of osteolysis. © 2019 Elsevier Inc.
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