Design and fabrication of uncemented femoral prosthesis using CAD/CAM/Robotic integration method
10.3969/j.issn.2095-4344.2014.40.004
- VernacularTitle:CAD/CAM/Robotic集成方法设计与制作生物型股骨柄假体
- Author:
Wenlong HAN
;
Jianfei ZHU
;
Qi WU
;
Changhua LIU
;
Aimin WANG
;
Wenming XI
- Publication Type:Journal Article
- Keywords:
bioprosthesis;
prosthesis design;
computer-assisted design;
imaging,three-dimensional
- From:
Chinese Journal of Tissue Engineering Research
2014;(40):6413-6418
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:In total hip replacements, aseptic loosening of uncemented femoral hip prosthesis is the main reason for the failure of artificial hip replacement, the prerequisite of reducing aseptic loosening of prosthesis is to increase fil ing area of femoral prosthesis in femoral cavity.
OBJECTIVE:To obtain the fil ing rate of customized femoral prosthesis in femoral cavity and verify the validity of the methods of CAD/CAM/Robotic integration and the robot grind.
METHODIn this paper, the CT data of femur were used to reconstruct three-dimensional model of femoral cavity. According to this model, a custom uncemented femoral hip prosthesis was designed, then the model of this custom prosthesis was imported into the CAD/CAM/Robotic software to generate cut path. After the cut path was imported into the robotic control er, the custom prosthesis can be fabricated, then this custom prosthesis was inserted into the femoral cavity, and the fil ing result of the custom prosthesis in femoral cavity was analyzed.
RESULTS AND CONCLUSION:The experiment results showed that the customized prosthesis in femoral cavity achieved good fil ing result, the structure of femoral cavity resisted the rotation of the customized prosthesis in femoral cavity, and the customized prosthesis obtained stable fixation in the femoral cavity.
