Andras Heijink1, Izaäk F Kodde2, Paul G H Mulder3, C Niek Van Dijk2, Denise Eygendaal3. 1. Department of Orthopaedic Surgery, Academic Medical Center Amsterdam, Amsterdam, The Netherlands. Electronic address: aheijink@yahoo.com. 2. Department of Orthopaedic Surgery, Academic Medical Center Amsterdam, Amsterdam, The Netherlands. 3. Department of Orthopaedic Surgery, Amphia Hospital, Breda, The Netherlands.
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. 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. 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. 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.
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. 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. 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. 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.
Authors: Pierre Laumonerie; Meagan E Tibbo; Panagiotis Kerezoudis; Marc Olivier Gauci; Nicolas Reina; Nicolas Bonnevialle; Pierre Mansat Journal: Int Orthop Date: 2018-07-30 Impact factor: 3.075
Authors: Francesco Catellani; Francesca De Caro; Carlo F De Biase; Vincenzo R Perrino; Luca Usai; Vito Triolo; Giovanni Ziveri; Gennaro Fiorentino Journal: Biomed Res Int Date: 2018-07-16 Impact factor: 3.411
Authors: Jetske Viveen; Izaak F Kodde; Andras Heijink; Koen L M Koenraadt; Michel P J van den Bekerom; Denise Eygendaal Journal: EFORT Open Rev Date: 2020-01-28
Authors: Femke M A P Claessen; Rens Bexkens; I F Kodde; Job N Doornberg; Michel P J V D Bekerom; Denise Eygendaal Journal: Arch Bone Jt Surg Date: 2020-01