Abstract In order to investigate the pattern of the changes of blood supply of the vascular superthin skin flap during expansion, in 17 patients, under the subdermal vessel networks layer of the periauriclar area, an expander was placed, and the skin was preliminarily expanded. The changes of blood supply were found regular: When the injected fluid volume was excessive, the skin became pale or cyanotic, the skin showed congestive telangiectasis. If great care was given during the procedure, the expanded skin could pass safely through the stage of poor blood circulation. The expanded superthin skin flap were applied in auriculoplasty in 17 patients. The results included 3 failures, and 14 satisfactory.
To study the blood supply and revascularization of super thin skin flaps with a presserved subcutaneous vascular retwork , we carried out a randomized self-matched experimental study in 10pigs. The free skin grafts with a preserved subcutaneous vascular network served as control. All skingrafts and flaps were divided into 6 groupe, besed on the potoperative days (1st , 3rd, 5th , 7th , 10thand 14th day). The revascularization of flape were assessed by means of intravenous fluorescein test...
In experimental study on pigs was designed to evaluate the changes of the vessel density of super thin skin flaps.By means of stratified sampling, isotropic uniform random section, the vessel density of the supor thin skin flap was obeerved under the MIAS-200 image analyzer. The results showed that the remarkable changes of vascular density were found to begin on the 5th day after operation and was first appeared in the distal port of the survived flap,then,it proceeded gradually from the distal proximally.