3D打印套接式组件有限翻修肿瘤关节假体断裂二例报道  

Limited revision of 2 patients with tumor joint prosthesis by 3D printed socket components

作　　者：徐明 郑凯 蒋大伟 侯子伟 于秀淳 XU Ming;ZHENG Kai;JIANG Da-wei;HOU Zi-wei;YU Xiu-chun(Department of Orthopaedics,PLA 960th Hospital,Jinan,Shandong,250031,China)

机构地区：[1]中国人民解放军联勤保障部队第九六〇医院骨病科,济南250031

出　　处：《中国骨与关节杂志》2024年第11期929-931,共3页Chinese Journal of Bone and Joint

摘　　要：保肢手术是目前治疗原发性骨肿瘤最常见的外科手术,应用肿瘤型人工假体重建是保肢手术的主要方式,具有早期负重、功能良好和恢复快等优点。在过去30年中,肿瘤性假体的20年总生存率从20%增加到90%,随着患者生存率的提高,肿瘤型假体发生断裂的风险也在增大,文献报道的假体断裂发生率在1%~8%[1]。Objective To analyze the feasibility of 3D-printed socket components for limited revision of fractured tumor joint prostheses.Methods We treated two patients with fractured tumor-type joints but no loosening of the prosthetic stem.We customized a 3D printed socket component preoperatively and performed a limited revision of the fractured prosthetic stem by snapping the original prosthesis without removing it intraoperatively.Results The procedure went smoothly and the operation time was short.The patient could get out of bed early for functional exercises after the operation.The prosthesis was in good condition with no signs of loosening during the follow-up of 2 years.Case 1,postoperative review X-ray and CT at 2 years after surgery showed that the prosthesis was well-positioned,the 3D printed porous structure was in close contact with the bone cortex,the original intramedullary stalk was located in the socket,and the peripheral bone cement was satisfactorily flled.Case 2,postoperative X-ray showed that the 3-winged porous structure was firmly fixed with the femoral cortex,and both lower limbs were equal in length.Conclusions The 3D-printed socket component limited revision of the fractured tumor joint prosthesis with no loosening of the prosthetic stem is clinically feasible with less trauma and fast postoperative recovery.

关 键 词：打印 三维 髋假体 再手术 

分 类 号：R738.2[医药卫生—肿瘤]