Analysis Of The Accuracy Of Preoperative Of Three-dimensional CT Paramerers Measured In Total Hip Arthroplasty

Objective: To explore the clinical significance of preoperative patients with total hip arthroplasty through three-dimensional CT scan in restoring postoperative limb length and reduce postoperative dislocation.Methods: Clinical data of two groups, 86 cases of patients with primary unilateral total hip arthroplasty were included.The paramerers of 45 patients in study group which include contralateral acetabular anteversion, acetabular abduction angle, distance from center of the femoral head to femoral neck osteotomy and tip of the femoral trochanter based on three-dimentional CT scan was measured before total hip arthroplasty.41 patients under conventional preoperative surgery which not used these parameters served as contro1.And then in order to verify the role of CT scan parameters in restoring postoperative limb length and reduce postoperative dislocation,we got the comparison of efficacy before and after surgery.Results: 86 patients of total hip arthropasty were followed up for(11.4 ± 6.2) months.The function of joint: The study group patients preoperative harris score were(12.5 ± 12.4) points, and( 87.2 ± 5.4) three months after surgery. With(15 ± 12.8) points in the control group before surgery, and(80.9 ±7.9) three months after treatment. There was statistically significant diference beween the two group(P<0.05).And the study group has a higher rate of 95% excellent when the control was 75%.Conclusions: The parameter measurement with three-dimensional CT scan has some guiding significance in THA surgery.