J Shanghai Jiaotong Univ Sci

J Shanghai Jiaotong Univ Sci››2021,Vol. 26››Issue (3): 361-367.doi:10.1007/s12204-021-2305-5

• Medical 3D Printing and Personalised Medicine •Previous ArticlesNext Articles

Design and Application of 3D Printing Based Personalised PelvicProstheses

Design and Application of 3D Printing Based Personalised Pelvic Prostheses

WU Junxianga (吴钧翔), LUO Dinghaoa (罗丁豪), XIE Kaia (谢凯), WANG Leia (王磊), HAO Yongqianga,b (郝永强)

  1. (a. Department of Orthopaedic Surgery; b. Medical 3D Printing Innovation Research Center for Technology,
    Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China)
  2. (a. Department of Orthopaedic Surgery; b. Medical 3D Printing Innovation Research Center for Technology,
    Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China)
  • Online:2021-06-28Published:2021-06-02
  • Contact:HAO Yongqiang(郝永强) E-mail:hyq 9hospital@hotmail.com
  • Supported by:
    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),
    the National Natural Science Foundation of China
    (Nos. 81972058, and 81902194), and the Multidisciplinary
    Team Clinical Research Project of Shanghai
    Ninth People’s Hospital (No. 201701003)

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Abstract: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.

Key words:pelvic prosthesis, hemipelvic reconstruction, personalised treatment, 3D printing, design solution

摘要：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.

关键词:pelvic prosthesis, hemipelvic reconstruction, personalised treatment, 3D printing, design solution

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