[Blood supply reestablishment of avascular necrosis of femoral head with digital subtraction angiography].
OBJECTIVE
To use digital subtraction angiography (DSA) to evaluate blood supply reestablishment after the treatment of the avascular necrosis of femoral head (ANFH) by using the vascularized iliac periosteum with deep iliac circumflex artery (DICA) and vein pedicle.


METHODS
Seldinger method was used to puncture femoral artery interpate of 20 patients with pre and postoperative ANFH. 6.5 F Cobrn conduct was optionally used and put directly into DICA and then contrast medium, was injected for observation of blood vessel.


RESULTS
Before operation, the position of DICA was found constant, 3 to 7 branches termity among the crest part of iliac bone. Three weekes after operation, DICA was found wider than that before operation, but the blood flow speed remained almost the same and its termity was distributed evenly inside the femoral head and looked like a bird's net. Three months after operation, the blood vessel was still wider, but blood flowed faster and its termity changed roundish, and the bird's net changed greatly and capillaries reached the subchoronal zone of femoral head.


CONCLUSIONS
Blood flow was well reestablished after the treatment of ANFH by DSA. It can be easily checked with less damage, large liability, and clear picture.
Department of Orthopaedics, Henan PLA District Hospital, Zhengzhou.
P
P
Dai
Z
Z
Zheng
S
S
Sun
D000328:Adult; D015901:Angiography, Digital Subtraction; D005260:Female; D005270:Femur Head / Q000098:blood supply*; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010521:Periosteum / Q000637:transplantation; D011184:Postoperative Period