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目的：加深和提高对股骨头缺血性坏死的认识。方法：本组１２例，２３髋做了骨髓静脉造影。结果：Ｘ线、ＣＴ表现０期者，旋股内、外侧静脉显影好，而股骨颈后静脉及臀静脉显影差或不显影，Ⅰ—Ⅳ期者也有少数旋股内、外侧静脉显影好者，表明这两条静脉是主要回流静脉。骨干返流，滋养静脉显影在Ⅱ、Ⅲ期多见，Ⅳ期者少见。造影剂滞流情况，０期者注入造影剂５ｍｉｎ后基本排空，Ⅰ期以上者大部分在１５ｍｉｎ后仍有大量滞流。造影剂进入股骨头毁损区的很难排空。结论：Ｘ线、ＣＴ表现０—Ⅰ期的静脉造影可发现回流障碍，有利于早期诊断。一般分期越重，回流静脉出现越少，滞流越明显，但也有病变较重者，５ｍｉｎ大部分排空，可能与晚期静脉侧枝循环改善有关。造影剂进入骨毁损区很难排空与局部血运有关
Objective: To deepen and raise awareness of avascular necrosis of femoral head. Methods: The group of 12 patients, 23 hips made of bone marrow venography. Results: In X-ray and CT scan, the development of the medial and lateral veins in the spinous process was good, while the posterior femoral jugular vein and the posterior inferior vena cava were poorly or poorly developed. There were also few spinous and medial veins in the Ⅰ-Ⅳ phase , Indicating that the two veins are the main reflux vein. Backbone reflux, nourishing vein imaging in Ⅱ, Ⅲ more common, Ⅳ rare. Contrast media stagnation, stage 0 basic injection of contrast agent after 5min emptying, most of the stage Ⅰ after 15min still a lot of stagnation. Contrast agent into the damaged area of the femoral head is difficult to empty. Conclusion: X-ray and CT findings of 0-Ⅰ phase venography can be found in reflux disorder, is conducive to early diagnosis. The more general staging, reflux veins appear less stagnant, more obvious, but also those with severe lesions, 5min most of the emptying, may be related to the improvement of late venous collateral circulation. Contrast agent into the bone damaged area is difficult to empty and local blood supply related