ABSTRACT
Objective To explore the correlation between the incidence of abdominal and pelvic artery distortion and age using dig-ital three-dimensional reconstruction,in order to assess risk in uterine artery embolization surgical approach.Methods Collecting the CTA datasets of 475 patients,group A aged 11-27 (n=40),group B aged 28-44(n=218),group C aged 45-61(n=197), group D aged 62-78(n=20).The 3D model of pelvic arteries was reconstructed by mimics software,and the arterial distortion was recorded by rotating and observing the 3D model,which was further classified into three categories.One was the distortion of the aorta only,the second was the distortion of iliac artery,and the third being distortion of both sturctures.the number of cases appeared arterial distortion in every age group was calculated and the ratio of the total cases to each age group was counted.Results There were 128(26.9%)cases appeared arterial distortion,the last 347(73.1%)were not found distortion in any artery.Of the 128 cases,the occurrence rates of arterial distortion in each age group were 2.5%、11.9%、44.7%、65% for group A,B,C and D respec-tively.Pearson linear correlation analysis showed that the incidence of arterial distortion positively correlated with age (r=0.404,help of three-dimensional reconstruction.The occurrence rate of artery distortion is increased with age and the iliac artery distortion occurrence is higher than that of the aorta artery.
ABSTRACT
BACKGROUND:The number of complications after hip replacement, such as infection, implant loosening, fracture prosthesis wear, osteolysis, and recurrent dislocation, had drastical y increased. These complications would induce the increased occurrence of total hip revision. OBJECTIVE:To analyze the causes and treatment measures of revision after total hip replacement. METHODS:The reasons for revision, the prosthesis selection, the treatment of bone defect and the postoperative rehabilitation were discussed in 33 cases after total hip replacement. The prosthesis for revision included general metal ring and lining (21 cases), large head and cup (8 cases), polyethylene cup (4 cases), general femoral components (15 cases, including 11 cases fixed by bone cement), and lengthening femoral components (18 cases, including 9 cases fixed by bone cement and 6 cases of combined components). RESULTS AND CONCLUSION:Al 33 patients were fol owed up for 24-60 months, averagely 36.5 months. After revision, wound healed perfect, and the prosthesis was reliable. No case suffered from infection or dislocation. Hip joint function was greatly improved. Harris score was increased from 37.1 preoperatively to 91.3 postoperatively. Medium-or short-period clinical fol ow-up results demonstrated that if the indication of revision was right, bone defects were handled perfectly, prosthesis was chosen correctly, one-stage total hip revision can get a good clinical efficacy.