Abstract:
:Replantation of amputated rat feet utilizing an efferent arteriovenous shunt constructed between the distal posterior tibial artery and the proximal posterior tibial vein, in the absence of all other venous drainage, provides an alternative pathway to the normal venous drainage in a replanted rat foot. However, this substitute venous drainage was insufficient to prevent progressive ischemia and necrosis of some or all of a replanted rat foot. When a cutaneous pedicle flap supplemented the arteriovenous shunt, venous drainage was much improved, tissue hypoxia and edema began to subside on the third day, severe tissue necrosis was prevented, and seven of eight feet replanted by this technique survived. These observations may be useful in replantation in humans when veins in the amputated part are too small to be used or so damaged that they cannot be repaired or reconstructed by a vein graft, but arteries can still provide a means of returning blood from the amputated part. Constructing an alternative pathway to the normal venous drainage pattern may allow severely damaged parts to survive after replantation.
journal_name
Microsurgeryjournal_title
Microsurgeryauthors
Zhou ZY,Rickard TA,Nichter LS,Zemel NP,Ashworth CR,Kassabian Gdoi
10.1002/micr.1920130112subject
Has Abstractpub_date
1992-01-01 00:00:00pages
48-55issue
1eissn
0738-1085issn
1098-2752journal_volume
13pub_type
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