The results of ankle joint arthroplasty with third generation models prothesis

The purpose: The aim of this study was to make a comparison in patients who undergo ankle arthroplasty in short and long term follow up period.Material and methods: We evaluated the efficiency of ankle joint replacement (71 patients). All patients were divided into 2 groups - prospective (6, 12 and 24 months) and retrospective (3, 5, 7 and 10 years). The results were evaluated with the help of a visual analogue scale (VAS) and the 100-point AOFAS scale; we also performed x-ray examinations. The longest follow-up period was 10 years.Results: There were no signs of instability of the endoprosthesis components in any of the 31 patient during the first year of follow up. However, two years after surgery in 6 (19,4%) patients showed signs of aseptic instability of the various components of the implants. Also we identified a significant risk factor for the most frequent complication, which was aseptic instability of the implant components.Conclusion: TAR in the absence of unsatisfactory results provide good or satisfactory results of treatment in the vast majority of patients: 100% for VAS and 96% on a scale of AOFAS - 2 years; 100% on both scales - 3 years; 92,3% after 5 years and 85.7 percent - 7 years after operative treatment. The dynamics of the different studied parameters were generally similar but had some differences.