Journal
FOOT AND ANKLE SURGERY
Volume 23, Issue 2, Pages 108-115Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fas.2017.03.016
Keywords
Total ankle arthroplasty; AES; Survival; Osteolysis; Malalignment
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Funding
- Department of Internal Medicine
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Background: The study reports the medium to long-term results of 130 Ankle Evolutive System total ankle replacements operated at a single-centre. Previously high amount of peri-implant osteolysis was reported from the same material. Methods: Between 2002 and 2008 one hundred and thirty consecutive ankles replaced with AES ankle prosthesis were followed both radiologically and clinically. Results: The five-year survival was 87.3% (95% confidence interval (CI) 80.0-92.0%), and ten-year survival 74.9% (95% confidence interval (CI) 65.4-82.2%) at a median follow-up time of 96 months (range 2-161; 8 years). Peri-implant osteolysis was found in 91 (70%) ankles, marked in 78 (60%). 44 ankles (34%) have been revised by filling of the cavities, 24 (18%) by fusion, and 6 by further replacement, resulting in the revision rate of 58%. Osteolysis was the main reason for all revisions. The improvement of the Kofoed Score and pain points was significant (all p < 0.0001), and the subjective patient satisfaction was good. Conclusions: Outcome of the current study was seriously affected by osteolysis and is inferior compared to previous reports. (C) 2017 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.
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