[Three-dimensional orthotopic tissue reconstruction with a free, prefabricated high-density porous polyethylene implant flap].
BACKGROUND
We investigated the appropriateness of the implant to be used in free-tissue transfers in a rabbit model in which a full-thickness skin graft was wrapped around a prefabricated high-density porous polyethylene implant.


METHODS
In ten New Zealand white rabbits, high-density porous polyethylene implants (Medpor), 10x15x3 mm in size, were bilaterally placed and anchored underneath the superficial inferior epigastric artery and vein pedicle under anesthesia. The flaps were prefabricated through vascular induction. Eight weeks later, the flaps were wrapped by a full-thickness postauricular skin graft, following orthotopic transplantation. Two weeks after grafting, full-thickness biopsy samples were obtained from the distal one-third of the implants and stained with hematoxylin-eosin and Masson trichrome for histologic examination.


RESULTS
Graft compliance was observed in all the implants. Histologic sections showed rich fibro-neovascular tissue, neovascularization, and development of connective tissue cells. There were very few polymorphonuclear cells. No signs of inflammation were observed.


CONCLUSIONS
Prefabrication of the high-density porous polyethylene implant under the superficial inferior epigastric artery and vein results in sufficient conditions for its use in free transfers.
Ozdemir
Orhan Murat
OM
Department of Plastic, Reconstructive and Esthetic Surgery, Kirikkale Yüksek Ihtisas Hospital, Kirikkale, Turkey.
Serel
Savaş
S
Gökrem
Serdar
S
Katircioğlu
Arda
A
Can
Zeki
Z
Serin
Sibel
S
D000818:Animals; D001672:Biocompatible Materials / Q000009:adverse effects / Q000627:therapeutic use*; D018919:Neovascularization, Physiologic / Q000502:physiology; D011095:Polyethylenes / Q000009:adverse effects / Q000627:therapeutic use*; D016062:Porosity; D019736:Prostheses and Implants; D011817:Rabbits; D016038:Skin Transplantation / Q000295:instrumentation* / Q000379:methods*; D013524:Surgical Flaps
D001672:Biocompatible Materials; C084562:Medpor; D011095:Polyethylenes