Evaluation Value of QCT in Detecting Bone Mineral Density Around Femoral Prosthesis for Hip Replacement
Objective:To evaluate the value of QCT in detecting bone mineral density around the femoral prosthesis in evaluating the outcome of hip replacement.Methods:Retrospective analysis was made on 108 patients who underwent hip replacement in the hospital from May 2019 to May 2021.They were divided into group A and group B according to Harris score.There were 71 patients in group A(Harris score ≥80)and 37 patients in group B(Harris score＜80).QCT was used to detect the bone mineral density(BMD)around the femoral prosthesis.The BMD around the femoral prosthesis of the two groups of patients before and 1 and 12 months after the operation was detected.The bone mass change rate was calculated and the correlation between Harris score and the bone mass change rate was analyzed.Results:After operation,R1 in group A was lower than group B,and R7 was higher than group B(t=2.964,5.317;P＜0.05).The bone mass increase rates R1 and R6 of group A were lower than those of group B,and the bone mass decrease rates R2,R3,R4,R5 and R7 of group A were lower than those of group B,the difference was statistically significant(t=542.209,548.430;t=498.126,502.064,506.196,597.025,860.134;P＜0.05).In the change rate of bone mass,R1 was negatively correlated with Harris score,while R7 was positively correlated with Harris score,with statistically significant difference(r=-0.471,0.483;P＜0.05).Conclusion:After hip replacement,the lower the change of BMD around the femoral prosthesis is,the better the curative effect is.Monitoring the degree of BMD changes in patients undergoing hip replacement is helpful to evaluate its efficacy.
Quantitative CTFemoral prosthesisHip replacementBone density
万方数据
维普
