Observation on application effect of implanting prosthesis by referring to transverse acetabular ligament positioning method in total hip arthroplasty

HUANG Chunyi; SUN Farui; LI Bo; FENG Shaosheng; YE Hengyi; CHENG Gege

doi:10.3969/j.issn.1674-3806.2025.04.10

Abstract：Objective To observe the application effect of implanting prosthesis by referring to transverse acetabular ligament positioning method in total hip arthroplasty(THA).Methods The clinical data of 126 patients who underwent THA in Huangshi Central Hospital from January 2022 to October 2023 were retrospectively analyzed.According to the intraoperative acetabular prosthesis positioning methods,the patients were divided into observation group(using the refferring to transverse acetabular ligament positioning method,64 cases)and control group(using the freehand visual inspection positioning method with a positioning rod,62 cases).The operation time,intraoperative blood loss,hip function(Harris score),deviation of hip rotation center and the occurrence of complications were compared between the two groups.Results The operation time of the observation group was shorter than that of the control group,and the intraoperative blood loss of the observation group was less than that of the control group,with statistically significant differences between the two groups(P＜0.05).The vertical deviation of the hip rotation center in the observation group was significantly smaller than that in the control group(P＜0.05),and there was no significant difference in the horizontal deviation between the two groups(P＞0.05).The good reconstruction rate of the hip rotation center in the observation group was higher than that in the control group,and the difference was statistically significant(P＜0.05).There were no significant differences in Harris scores between the two groups before operation(P＞0.05),and the Harris scores in both groups showed an increasing trend after operation(P＜0.05).At 1 month and 6 months after operation,the Harris scores of the observation group were significantly higher than those of the control group(P＜0.05).The total incidence of postoperative complications in the observation group was lower than that in the control group,and there was statistically significant difference between the two groups(4.69％vs 16.13％;x2=4.496,P=0.034).Conclusion Implanting the prosthesis by referring to the transverse acetabular ligament positioning method in THA is helpful for reducing the deviation of hip rotation center after reconstruction and is beneficial to rehabilitation of the patients'hip joint function.