CAJ | 학술논문

背景：生物型股骨柄假体无菌松动是全髋关节置换失败的主要因素，减少无菌松动的先决条件是增加股骨柄假体在股骨髓腔中的填充率。 　　目的：得到定制式股骨柄假体在髓腔中的填充率，验证计算机辅助设计/计算机辅助制造/工业机器人加工(CAD/CAM/Robotic)集成方法和机器人磨削的有效性。 　　方法：利用 CT 数据重建股骨髓腔三维模型，在此三维模型基础上设计股骨柄假体的柄体，依据标准直柄股骨柄假体近端模型设计股骨柄假体的其余部分。将设计的股骨柄假体模型导入CAD/CAM/Robotic集成系统生成机器人磨削轨迹，利用该轨迹对股骨柄假体进行磨削加工。将加工好的股骨柄假体与股骨髓腔匹配，分析股骨柄假体在髓腔中的填充率。 　　结果与结论：实验结果表明，定制式股骨柄假体在髓腔中有良好的填充率，髓腔的解剖结构可以阻止股骨柄假体的扭转，获得股骨柄假体在髓腔中的稳定固定。
배경：생물형고골병가체무균송동시전관관절치환실패적주요인소，감소무균송동적선결조건시증가고골병가체재고골수강중적전충솔。 　　목적：득도정제식고골병가체재수강중적전충솔，험증계산궤보조설계/계산궤보조제조/공업궤기인가공(CAD/CAM/Robotic)집성방법화궤기인마삭적유효성。 　　방법：이용 CT 수거중건고골수강삼유모형，재차삼유모형기출상설계고골병가체적병체，의거표준직병고골병가체근단모형설계고골병가체적기여부분。장설계적고골병가체모형도입CAD/CAM/Robotic집성계통생성궤기인마삭궤적，이용해궤적대고골병가체진행마삭가공。장가공호적고골병가체여고골수강필배，분석고골병가체재수강중적전충솔。 　　결과여결론：실험결과표명，정제식고골병가체재수강중유량호적전충솔，수강적해부결구가이조지고골병가체적뉴전，획득고골병가체재수강중적은정고정。
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.