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Cemented bipolar radial head arthroplasty: midterm follow-up results.
- Source :
-
Journal of shoulder and elbow surgery [J Shoulder Elbow Surg] 2016 Nov; Vol. 25 (11), pp. 1829-1838. Date of Electronic Publication: 2016 Aug 09. - Publication Year :
- 2016
-
Abstract
- Background: Theoretical advantages of bipolar over monopolar radial head arthroplasty include better accommodation of radiocapitellar malalignment, reduction of capitellar abrasion, and reduction of stress at the bone-to-cement and cement-to-implant interfaces. Our purpose was to report the midterm results of cemented bipolar radial head arthroplasty.<br />Methods: Twenty-five patients were treated by cemented bipolar radial head arthroplasty for acute fracture of the radial head, earlier treatment that had failed, or posttraumatic sequelae. One patient refused follow-up after surgery. Results are presented for the remaining 24 patients.<br />Results: At a mean follow-up of 50 months (range, 24-72 months), 1 prosthesis (4%) had been removed 2 years after implantation for dissociation of the prosthesis due to failure of the snap-on mechanism. There were 2 (8%) additional radiologic failures in the subluxated position: 1 prosthesis due to malalignment of the radius onto the capitellum and another due to ulnohumeral erosion. The average flexion-extension arc was 129° (range, 80°-140°), and the average pronation-supination arc was 131° (range, 40°-180°). According to the Mayo Elbow Performance Score, the combined excellent and good results accounted for 83%. In 8 patients, the bipolar design compensated for radiocapitellar malalignment.<br />Conclusions: The overall midterm outcome of this series of 25 cemented bipolar radial head arthroplasties can be considered favorable. There was 1 (4%) revision and 2 (8%) additional radiologic failures. The bipolar design was able to compensate for radiocapitellar malalignment. We suggest considering a cemented bipolar radial head prosthesis in case of concerns about radiocapitellar alignment.<br /> (Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1532-6500
- Volume :
- 25
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Journal of shoulder and elbow surgery
- Publication Type :
- Academic Journal
- Accession number :
- 27521138
- Full Text :
- https://doi.org/10.1016/j.jse.2016.05.017