Research of digital orthopaedic technology application in the selection and placement of THA prosthesis
ZHANG Ying
YANG Yu
Kaisaierjiang· Aihemaiti
LIU Da-peng
YANG Jing
Abstract：Objective To research the significance of digital orthopaedic technology application in the se-lection and placement of THA prosthesis .Methods Forty-one patients underwent THA from May 2007 to Apr. 2015 were choosen ,among whom 21 cases were male and 18 cases were female with an average age of 62 ( 58-79 ) years.Nineteen patients (21 hips) with the aid of preoperative CT 3D reconstruction and Mimics 17.0 to select THA prosthesis were as the observation group and another 20 patients (23 hips) with X-ray imaging template to se-lect THA prosthesis were as the control group .THA prosthesis accuracy after the operation was compared between the two groups .Results Totally 39 cases ( 44 hips ) were followed up with a mean period of 13.1 ( 9 to 23 ) months.The wrong selection number of THA prosthesis in the observation group was 4,while the wrong selection number of THA prosthesis in the control group was 12.The accuracy (80.9%) of THA prosthesis in the observa-tion group was better than that of the control group (47.8%),and the difference was significant .The excellent and good rate in the observation group (85.7%) was higher than that of the control group (73.9%), while the differ-ence was not significant(P=0.095).Conclusion Application of digital orthopaedic technology for THA prosthe-sis selection and placement can improve the accuracy of THA prosthesis placement .It is an ideal prosthesis selec-tion method.
Keywords：hip arthroplastydigital orthopedicdigital modelprosthesis
Publication Date：2017-01-01
Pages：4( 22-25 )