Résumé
Objective It would make a reconstructed ear more naturally when deep temporal fascia, which is much thinner, cover the MEDPOR ear framework instead of superficial temporal fascia. However, without an axial vascular supply, should skingraft be taken on the islanded deep temporal fascia flap? Perhaps this fascia flap could get a new blood supply from the underlying superficial temporal fascia through the porous framework after a period of time. This study was to test its possibility. Methods A piece of 30?15?2mm MEDPOR material was inserted between superficial and deep fascia on the back of a rabbit. In control group, skin graft on the deep surface of deep fascia was operated at once; in experiment group, the incision was sutured and the skin graft was operated 3 weeks later in the same incision. Results Skin grafts were taken in all the 6 rabbits in the experiment group. 80%～100% of necrosis occurred in all the 6 rabbits of control group. Conclusion Without an axial vascular supply, skin graft can not survive on the islanded deep fascia flap. This fascia flap can get a new blood supply from the underlying superficial fascia through the porous MEDPOR material, through which small vessels grow between the two fascia after 3 weeks.