Short-term outcomes of three-dimensional-printed porous prosthesis for the joint-sparing reconstruction of the proximal for tumorous defect
YE Qiang
ZHANG Yu-qi
HE Xuan-hong
HU Xin
WANG Jie
GONG Tao-jun
LI Zhuang-zhuang
LU Min-xun
ZHOU Yong
LUO Yi
TU Chong-qi
MIN Li
Abstract：Objective To report the early curative effect of 13 cases with proximal humeral ultra-critical sized bone defect treated by 3D printed porous humerus prosthesis and introduce the design concept of porous intercalary prosthesis.Methods Baseline data,operative data,oncology prognosis,osseointegration,prosthesis-related complications,and postoperative function were retrospectively analyzed in patients who underwent total resection of proximal humeral malignant tumors combined with extreme joint preservation and 3D-printed porous intercalary prosthesis reconstruction.Results The mean age of the patients was(20.2±3.8)years,and the median follow-up was 48.0 months.The remaining proximal humerus length averaged(17.6±1.1)mm.All patients retained the humerus head and most of the rotator cuff was intact.The mean range of motion(ROM)of the affected shoulder joint was buckling,84.8°;spread,79.5°;extension,26.8°;adduction,16.2°.The Musculoskeletal Tumor Society(MSTS)score averaged 94.4%,and favorable osteointegration was observed on the bone-prosthesis interface.Conclusions The short-term postoperative follow-up showed that the prosthesis was functionally satisfactory for ultra-critical sized bone defect in the proximal humerus.The 3D-printed porous humerus prosthesis provides a new option for joint preservation and reconstruction of patients with proximal humerus limiting tumor defect.
Keywords：Printingthree-dimensionalShoulder prosthesisBone neoplasmsProsthesis designProsthesis implantationHumerus
Publication Date：2023-12-19
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 896-903 )