Objective:To analyze the correlation between the recovery of postoperative function of hip joint in patient underwent total hip arthroplasty(THA)and anatomical parameters of femur under computed tomography(CT)three-dimensional(3D)reconstruction.Methods:From January 2022 to October 2024,a total of 120 THA patients were treated at the 904th Hospital of People's Liberation Army Joint Service Support Force were selected.At the third month post-surgery,the Harris Hip Score(HHS)system was used to assess the recovery of the function of hip joint of THA patients,and they were divided into favorable recovery group(72 cases,HHS score≥80)and poor recovery group(48 cases,HHS score<80).The femoral offset(FO),collodiaphyseal angle(CDA),and femoral neck anteversion(FNA)in anatomical parameters of femur under CT CD reconstruction for patients of two groups after surgery were measured and compared.The correlation between each parameter and the recovery of postoperative function of hip joint in THA patients was analyzed.The receiver operating characteristic(ROC)curve was plotted to analyze the assessment value of each parameter for the recovery of the function of hip joints in THA patients.Results:In the follow-up at the third month,120 patients were assessed by using the HHS scoring system.The recovery of 72 patients(60.00%)was favorable,with an average HHS score of 84.45±5.19.The recovery of 48 patients(40.00%)was poor,with an average HHS score of 73.31±4.78.Postoperative CDA and FO scores were higher than preoperative values,while FNA scores were lower than preoperative value in 120 patients.After surgery,the CDA and FO scores of favorable recovery group were lower than those of poor recovery group,and FNA was higher than that of favorable group,and the differences between the two groups were statistically significant(t=7.938,9.574,10.391,P<0.05).Pearson correlation coefficient test showed that postoperative function(HHS score)of hip joint negatively correlated with FNA in THA patients(r=-0.511,P<0.05),and it positively correlated with CDA and FO(r=0.408,0.359,P<0.05).ROC curve analysis indicated that the area under curve(AUC)values of ROC curves of single CDA,FO,FNA and the combined detection of them were respectively 0.761,0.855,and 0.827 in assessing the poor recovery of the function of hip joint,which had a certain of assessment values.The combined detection can improve the diagnostic value.Conclusion:The postoperative recovery of the function of hip joint of THA patients relates to CDA,FO and FNA parameters,and the single and combined detections of each parameter all have a certain of assessment value for the poor recovery of joints'function of patients.

Objective:To analyze the correlation between the recovery of postoperative function of hip joint in patient underwent total hip arthroplasty(THA)and anatomical parameters of femur under computed tomography(CT)three-dimensional(3D)reconstruction.Methods:From January 2022 to October 2024,a total of 120 THA patients were treated at the 904th Hospital of People's Liberation Army Joint Service Support Force were selected.At the third month post-surgery,the Harris Hip Score(HHS)system was used to assess the recovery of the function of hip joint of THA patients,and they were divided into favorable recovery group(72 cases,HHS score≥80)and poor recovery group(48 cases,HHS score<80).The femoral offset(FO),collodiaphyseal angle(CDA),and femoral neck anteversion(FNA)in anatomical parameters of femur under CT CD reconstruction for patients of two groups after surgery were measured and compared.The correlation between each parameter and the recovery of postoperative function of hip joint in THA patients was analyzed.The receiver operating characteristic(ROC)curve was plotted to analyze the assessment value of each parameter for the recovery of the function of hip joints in THA patients.Results:In the follow-up at the third month,120 patients were assessed by using the HHS scoring system.The recovery of 72 patients(60.00%)was favorable,with an average HHS score of 84.45±5.19.The recovery of 48 patients(40.00%)was poor,with an average HHS score of 73.31±4.78.Postoperative CDA and FO scores were higher than preoperative values,while FNA scores were lower than preoperative value in 120 patients.After surgery,the CDA and FO scores of favorable recovery group were lower than those of poor recovery group,and FNA was higher than that of favorable group,and the differences between the two groups were statistically significant(t=7.938,9.574,10.391,P<0.05).Pearson correlation coefficient test showed that postoperative function(HHS score)of hip joint negatively correlated with FNA in THA patients(r=-0.511,P<0.05),and it positively correlated with CDA and FO(r=0.408,0.359,P<0.05).ROC curve analysis indicated that the area under curve(AUC)values of ROC curves of single CDA,FO,FNA and the combined detection of them were respectively 0.761,0.855,and 0.827 in assessing the poor recovery of the function of hip joint,which had a certain of assessment values.The combined detection can improve the diagnostic value.Conclusion:The postoperative recovery of the function of hip joint of THA patients relates to CDA,FO and FNA parameters,and the single and combined detections of each parameter all have a certain of assessment value for the poor recovery of joints'function of patients.