Orthopedic and Traumatologic Surgery Department, Rouen University Hospital, 37 Boulevard Gambetta, Rouen, France.
Int Orthop. 2024 Dec;48(12):3167-3173. doi: 10.1007/s00264-024-06309-y. Epub 2024 Sep 25.
For preserving the humeral bone stock, some surgeons proposed a stemless humeral prosthetic component. This study reports the functional and radiologic results of the stemless anatomic prosthesis Simpliciti*(Tornier, Wright, Stryker), with the hypothesis that it can achieve a good metaphyseal fixation.
28 patients underwent 30 shoulder replacements with the Simpliciti* humeral prosthesis followed for an average of three years (2 months to 8 years). The clinical outcome used the Constant-Murley score and the Bankes resistance and force evaluation. The radiologic assessment looked after radiolucent lines, signs of implant migration, osteolysis or loosening.
The Constant score improved from 19.03 preoperatively to 54.03 points post operatively. Radiographic analysis showed one early component loosening, and at the longer follow-up, one radiolucent line. All the other implants appeared well fixed.
This study verified the quality of the metaphyseal fixation of this stemless implant, with achieving a significant functional improvement.
Level IV, Case Series, Treatment Study.
为了保留肱骨干，一些外科医生提出了一种无柄肱骨髓内假体。本研究报告了 Simpliciti*（ Tornier、Wright、Stryker）无柄解剖假体的功能和影像学结果，假设它可以实现良好的干骺端固定。
28 例患者接受了 30 例 Simpliciti*肱骨假体置换，平均随访 3 年（2 个月至 8 年）。临床结果采用 Constant-Murley 评分和 Bankes 阻力和力量评估。影像学评估观察有无透亮线、假体迁移、骨溶解或松动的迹象。
Constant 评分从术前的 19.03 分提高到术后的 54.03 分。影像学分析显示早期有 1 例假体松动，在较长的随访中，有 1 例出现透亮线。所有其他的植入物都固定得很好。
本研究证实了这种无柄植入物干骺端固定的质量，实现了显著的功能改善。
IV 级，病例系列，治疗研究。
