interventional therapy effect and dsa image of the nontrauma avascular necrosis
of the femoral head
zhang gong-hua，song tai-min，cui hong-ling，et al
（department of radiology, the luohe first people's hospital, luohe 462003，china）
[abstract] objective to explore the digital subtraction angiograpthy（dsa） characters and the effect of interventional therapy on avascular necrosis of the femoral head. methods fifty-two pieces in 36 patients with the avascular necrosis of the femoral head were examined and treated with dsa or perfusion of drug. results fifty pieces (96.2%) were abnormal in the femoral head's artery, 40 pieces (76.9%) were abnormal in the image of the femoral head and 25 pieces (48.1%) were abnormal in the vein of the femoral head. after treatment, in the patients, the pain of the hip was alleviated, the blood vessel anastomosis and the dense of the blood vessel in the femoral head increased. after one year, 37(71.2%) of 52 pieces, the osseous repair were indicated by means of x-ray photogram or ct. conclusion the effect of interventoinal therapy on the avascular necrosis of the femoral head is good, and it can improve the local blood circulation and the function of the hip.
[key words] avascular necrosis of the femoral head； dsa； interventional therapy