In this paper,we describe the design and surgical process of personalised pelvic prostheses fixation through 3D printing according to different Enneking pelvic tumour zones:the ilium(Zone I),acetabulum(Zone II),and pu...In this paper,we describe the design and surgical process of personalised pelvic prostheses fixation through 3D printing according to different Enneking pelvic tumour zones:the ilium(Zone I),acetabulum(Zone II),and pubis and ischium(Zone III).A 3D model of the pelvis was reconstructed using imaging data,and the parameters on the planes of the acetabulum and pelvic incisal margin were measured.The main body of the pelvic prosthesis was constructed,a porous structure was designed on the bone-prosthesis interface,and the movement paths,lengths,and diameters of screws were planned.By combining the pathological model and osteotomy guide,limb salvage reconstruction was performed in patients with pelvic tumours.Preoperative and postoperative data were compared to verify the prosthesis stability.Our investigation revealed that the long-term survival of pelvic reconstruction prostheses depends on accurate matching with the bone defect area,good initial stability,and a porous structure to allow bone ingrowth.展开更多
基金the National Key Research and Development Program of China(No.2016YFC1100600)the Multicenter Clinical Research Project of Shanghai Jiao Tong University School of Medicine(No.DLY201506)+1 种基金the National Natural Science Foundation of China(Nos.81972058,and 81902194)the Multidisciplinary Team Clinical Research Project of Shanghai Ninth People’s Hospital(No.201701003)。
文摘In this paper,we describe the design and surgical process of personalised pelvic prostheses fixation through 3D printing according to different Enneking pelvic tumour zones:the ilium(Zone I),acetabulum(Zone II),and pubis and ischium(Zone III).A 3D model of the pelvis was reconstructed using imaging data,and the parameters on the planes of the acetabulum and pelvic incisal margin were measured.The main body of the pelvic prosthesis was constructed,a porous structure was designed on the bone-prosthesis interface,and the movement paths,lengths,and diameters of screws were planned.By combining the pathological model and osteotomy guide,limb salvage reconstruction was performed in patients with pelvic tumours.Preoperative and postoperative data were compared to verify the prosthesis stability.Our investigation revealed that the long-term survival of pelvic reconstruction prostheses depends on accurate matching with the bone defect area,good initial stability,and a porous structure to allow bone ingrowth.
