Prefabrication of free flaps using the omentum in rats
| Autor: | William W. Shaw, Norman Bakshandeh, John W. Siebert, Ling Zhang, Benjamin Chang, Robert E. Tuchler |
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| Rok vydání: | 1992 |
| Předmět: |
Male
medicine.medical_specialty medicine.medical_treatment Skin flap Coloring agents Free flap Revascularization Surgical Flaps Necrosis medicine Flap survival Animals Coloring Agents Skin Experimental model business.industry Graft Survival Rats Inbred Strains Skin Transplantation Microsurgery Fluoresceins Carbon Surgery Rats Omental patch business Omentum |
| Zdroj: | Microsurgery. 13(4) |
| ISSN: | 0738-1085 |
| Popis: | The omentum used as a vascular carrier is a new experimental model for prefabrication of free flaps in the rat. A 2.5 x 4 cm patch of omentum with gastroepiploic vessels and its rich vascular arcades was transferred under a bipedicled 2.5 x 6 cm right abdominal panniculocutaneous flap. At subsequent time intervals (postoperative days 0, 3, 5, 7, and 14), the skin pedicles were divided and the skin flap was raised as a composite island flap vascularized only by the underlying omental patch. The composite flap was then sutured back in place. Prefabricated flaps examined postoperatively demonstrated a dye fluorescence index (DFI) of 4.60% +/- 2.82% and 1.67% +/- 4.08% flap survival (FS) in the day 0 group; in the day 3 group, 9.83% +/- 1.47% of DFI and 15.00% +/- 10.35% of FS; in the day 5 group, 28.39% +/- 5.25% of DFI and 86.0% +/- 12.74% of FS (P less than 0.05); in the day 7 group, 38.19% +/- 7.52% of DFI and 98.13% +/- 3.72% of FS (P less than 0.05); and, in the day 14 group, 49.55% +/- 6.70% of DFI and 100% of FS (P less than 0.05). India-ink injection and histologic examination confirmed revascularization of the overlying skin by day 5. |
| Databáze: | OpenAIRE |
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