Implantation of customized 3-D printed titanium prosthesis in limb salvage surgery: a case series and review of the literature

World Journal of Surgical Oncology

Research

Jun Fu¹  Hongbin Fan¹  Xiangdong Li¹  Zheng Guo¹  Yanjun Pei¹  Xiaokang Li¹  Guoxian Pei¹ 

[1] Department of Orthopaedic Surgery, Xi-Jing Hospital, Fourth Military Medical University, West Chang-le Road, 710032, Xi’an, China;

关键词: Rapid prototyping;    Prosthesis;    Titanium;    Electron beam melting;   

DOI  :  10.1186/s12957-015-0723-2

 received in 2015-06-23, accepted in 2015-10-26,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundAlthough modular prosthesis is commercially available to meet requirements in most limb salvage surgeries, customized prosthesis is still needed. In contrast to traditional complicated procedures, rapid prototyping (RP) technique can directly manufacture customized titanium prosthesis. The objectives of this study were to describe the workflow of this technique and show the follow-up results of patients.MethodsThree patients with clavicle Ewing’s sarcoma (ES), scapular ES, and pelvic chondrosarcoma (CS) were scanned by computer tomography (CT). The images were segmented and reconstructed for preoperative planning and prosthesis design. Then, the data of prosthesis were imported into an electron beam melting system to manufacture implants. These three patients received prosthesis implantation after tumor excision. They were followed up to evaluate survival rate, functional outcome, and complications.ResultsAll patients were alive with no evidence of disease. The Musculoskeletal Tumor Society (MSTS) scores were 93, 73, and 90 % for patients with clavicle ES, scapular ES, and pelvic CS, respectively. No surgical complications including limb length discrepancy, screw loosening, and implant breakage were observed in current study.ConclusionsElectron beam melting (EBM) is a useful method to directly manufacture customized titanium prostheses. It might improve the effectiveness of limb salvage surgery for sarcomas in unusual sites.

【 授权许可】

CC BY   
© Fan et al. 2015