Research on the Application of Inclinometer in Total Hip Arthroplasty
Objective:To investigate the application of a self-designed device for measuring the cup inclination angle in order to enhance the accuracy of acetabular cup placement angles(abduction angle and anteversion angle)during total hip arthroplasty(THA).Methods:30 patients who underwent THA for hip joint diseases from September 2021 to May 2023 were selected were randomly divided into two groups:an observation group(15 cases)and a traditional group(15 cases).In the observation group,the cup inclination angle measurement device was used during the surgery to measure the abduc-tion angle and anteversion angle of the acetabular cup placement,whereas the traditional group underwent the conventional THA procedure.The planned abduction and anteversion angles for both groups were set at 40° and 20° respectively.Post-operative X-ray films were utilized to measure the disparity between the actual abduction and anteversion angles of the ace-tabular cup prosthesis in each group and the preoperative planned angles.Results:The observation group demonstrated signif-icantly smaller errors between the postoperative abduction angle,anteversion angle,and the preoperative planned angles compared to the traditional group.A statistically significant difference was observed between the two groups(P<0.05).Conclusion:In THA procedures,the implementation of the cup inclination angle measurement device to assess and correct the abduction angle and anteversion angle of the acetabular cup placement can notably improve the accuracy of the cup placement angles.
total hip arthroplastyabduction angleanteversion angleself-designed inclination angle measuring device