Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland.
Department of Orthopaedic Surgery, McGill University, Montreal, Quebec, Canada.
J Int Med Res. 2023 Apr;51(4):3000605221135881. doi: 10.1177/03000605221135881.
Radial head arthroplasty (RHA) is the principal treatment option for comminuted radial head (RH) fractures. Here, we present six cases of failed RHA using a modular monopolar press-fit RHA that was subsequently withdrawn from the market because it was associated with a high incidence of loosening.
We retrospectively collected data from six patients who had received Radial Head Prothesis System at our centre between July 2015 and June 2016. The average follow-up was 40 months.
Aseptic loosening of the stem affected five (83%) of the six RHA. Four of these were symptomatic and RHA removal was performed. For these patients, the pain subsided and their elbow range of motion (ROM) improved.
While the ideal design for an RHA is still debatable, RHA is an efficient treatment option that restores elbow stability and function after a comminuted RH fracture. Importantly, removal of the prosthesis is an effective remedy following RHA associated elbow pain and decreased ROM.
桡骨头置换术（RHA）是粉碎性桡骨头（RH）骨折的主要治疗选择。在这里，我们报告了使用模块化单极压配合 RHA 进行失败的 RHA 的 6 例病例，该 RHA 随后因松动发生率高而退出市场。
我们回顾性地收集了 2015 年 7 月至 2016 年 6 月期间在我们中心接受桡骨头假体系统治疗的 6 名患者的数据。平均随访时间为 40 个月。
5 例（83%）的 6 例 RHA 出现无菌性松动。其中 4 例有症状，行 RHA 切除。对于这些患者，疼痛减轻，肘部活动范围（ROM）改善。
虽然理想的 RHA 设计仍存在争议，但 RHA 是一种有效的治疗选择，可在粉碎性 RH 骨折后恢复肘部稳定性和功能。重要的是，在 RHA 相关肘部疼痛和 ROM 减少的情况下，假体切除是一种有效的治疗方法。
