Results of cementless total elbow arthroplasty using the Discovery elbow system at a mean follow-up of 61.8 months.

BACKGROUND: The available literature on the use of a cementless total elbow arthroplasty (TEA) design and its results are limited. This clinical study reports the outcome of the cementless Discovery elbow system.

METHODS: Patients were operated on by a single surgeon between 2007 and 2014. Nineteen patients (20 elbows) were available for review, 2 women (1 bilateral TEA) and 17 men. The age of the patients ranged from 27 to 75 years (mean, 48 years). The mean follow-up was 61.8 months (range, 12-156 months). Patients were assessed for range of motion, pain, and satisfaction level. Outcome scores included the Mayo Elbow Performance Score, the Liverpool Elbow Score, and the 12-Item Short Form Health Survey (version 1). Radiographs were reviewed to evaluate for loosening.

RESULTS: The mean Mayo Elbow Performance Score was 77.25, and the mean Liverpool Elbow Score was 6.76. The mean flexion range was 123°, and the mean extension lag was 35°. The mean pronation was 59°, and the mean supination was 58°. On radiologic evaluation, there were no signs of loosening; however, in 2 cases, nonprogressive radiolucent lines were observed. No signs of infection were detected at final follow-up, and no elbows were revised. More than 90% of patients were satisfied with the overall outcome.

CONCLUSION: The cementless TEA seems to be a reliable option for treatment of varying elbow diseases. Long-term results are needed to assess the survivorship of this design.