Abstract
Background: We report the outcomes of a prospective consecutive series of 267 total ankle replacements (TARs) using a new mobile bearing Rebalance(R) prosthesis. Methods: Between April 2011 and December 2018, 267 consecutive Rebalance(R) prostheses were implanted in 255 patients at 3 different centers.
Estimated survival curves with 95% confidence intervals were produced with the Kaplan-Meier method. 110 ankles were followed for at least 5 years and clinical and radiological outcomes were assessed in 92 of these ankles. Results: Twenty-one ankles were revised at a mean of 34 (7-60) months.
The estimated survival was 90% (95% CI 86-95) at 5 years and 88.3% (95% CI 83.-94 at 6 years. The ankles followed for at least 5 years demonstrated a median Likert score of 1 (1-4).
Radiolucent zones were detected in 14% and osteolytic cysts in 3%. Conclusion: The survival rate of the Rebalance prosthesis conforms with other reports of similar designs.
The satisfaction rate was high. Radiological zones and osteolytic cysts were found at a lower rate than usually reported for mobile bearing TARs.
These results favour further use of this implant. (C) 2020 European Foot and Ankle Society