Stefan Calin, Moldovan Cristian, Marsavina Liviu, Hurmuz Mihai, Stefan Iuliana
Department of Mechanics and Strength of Materials, Politehnica University Timisoara, Blvd. M. Viteazu, Nr. 1, 300222 Timisoara, Romania.
Orthopedics Unit, "Dr. Victor Popescu" Emergency Military Hospital, Gheorghe Lazăr Street 7, 300080 Timisoara, Romania.
Reports (MDPI). 2024 Dec 19;7(4):117. doi: 10.3390/reports7040117.
Since their first introduction in the early 1950s, hip prostheses implants are becoming increasingly reliable; nevertheless, failures can still happen. The focus of this paper is to present a case study on a catastrophic fractured hip prosthesis liner that consequently led to revision surgery and the replacement of the destroyed implant. The patient was diagnosed with Hodgkin's lymphoma and had Total Hip Arthroplasty on both legs, but only the right side needed revision due to a fracture in the liner. The patient's symptoms were a squeaking sound, functional impairment, and pain, and an X-ray showed the extent of the damage. We also present a short review on the mechanisms of liner fracture, focusing strictly on the mechanical aspects of failure. Hip prosthesis implants are not immune to failure. This case highlights the importance of an interdisciplinary approach and emphasizes the need for vigilant postoperative monitoring and the development of predictive tools.
自20世纪50年代初首次引入以来，髋关节假体植入物的可靠性越来越高；然而，失败情况仍可能发生。本文的重点是呈现一个关于髋关节假体衬垫灾难性骨折的案例研究，该骨折最终导致了翻修手术以及对损坏植入物的更换。患者被诊断患有霍奇金淋巴瘤，双腿均接受了全髋关节置换术，但由于衬垫骨折，只有右侧需要翻修。患者的症状包括摩擦声、功能障碍和疼痛，X射线显示了损伤程度。我们还对衬垫骨折的机制进行了简短综述，严格聚焦于失败的力学方面。髋关节假体植入物并非不会出现故障。该案例凸显了跨学科方法的重要性，并强调了术后密切监测以及开发预测工具的必要性。
