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Our results are comparable with those reported in the literature. The clinical outcome improved significantly. Due to aseptic and septic loosening, 8.2% of the prosthesis failed.

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Isolated acute distal radioulnar joint (DRUJ) dislocation is a rare injury (Garrigues and Aldridge III in J Bone Joint Surg Am 89:1594–1597, 2007]. Reports of isolated DRUJ luxations, volair or dorsal, are often case reports and rarely a series of cases [Dameron Jr in Clin Orthop Relat Res 83:55–63, 1972]. We present a case of an acute traumatic dorsal DRUJ dislocation treated with cast immobilization with recurrence of the dislocation after a new trauma some months later. At follow-up, 17 months after the first dislocation and 9 months after the second, he experienced no pain and had no restrictions in work or sports-related activities.

Background and purpose The first generations of total ankle replacements (TARs) showed a high rate of early failure. In the last decades, much progress has been made in the development of TARs, with the newer generation showing better results. We evaluated TARs implanted with rheumatoid arthritis (RA) or juvenile inflammatory arthritis (JIA) as indication.Patients and methods 58 total ankle prostheses (Buechel-Pappas and STAR type) were implanted in patients with RA (n = 53) or JIA (n = 5) in 54 patients (4 bilateral). After a mean follow-up of 2.7 (1–9) years, all patients were reviewed by two orthopedic surgeons who were not the surgeons who performed the operation. Standard AP and lateral radiographs were taken and a Kofoed ankle score was obtained; this is a clinical score ranging from 0–100 and consists of sub-scores for pain, disability, and range of motion.Results 2 patients died of unrelated causes. Of the 52 patients who were alive (56 prostheses), 51 implants were still in place and showed no signs of loosening on the most recent radiographs. The mean Kofoed score at follow-up was 73 points (SD 16, range 21–92). 4 patients showed a poor result (score < 50) with persistent pain for which no obvious reason could be found. 5 implants were removed, 4 because of infection and 1 because of aseptic loosening.Interpretation Medium-term results of the STAR and BP types of TAR in RA were satisfactory. The main reason for failure of the implant was infection.