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Experimental study of prefabricated flaps using vein grafts
1Department of Plastic Surgery, Faculty of Medicine, University of Tokyo, Japan.
Journal of Reconstructive Microsurgery
|September 1, 1993
Summary
This study found that prefabricated skin flaps, nourished by an arteriovenous shunt, maintain excellent viability regardless of blood supply from the recipient bed. This indicates their independence from underlying vascularity for survival.
Area of Science:
- Regenerative Medicine
- Vascular Biology
- Surgical Innovation
Background:
- Prefabricated flaps offer a promising alternative to traditional donor sites, potentially overcoming limitations of natural vascular territories.
- Previous research suggests that arteriovenous (A-V) shunts can promote sufficient flap neovascularization.
Purpose of the Study:
- To investigate the impact of recipient bed neovascularization on the survival of prefabricated skin flaps.
- To determine if prefabricated flaps are dependent on the vascularity of the underlying recipient bed.
Main Methods:
- An 8-cm x 10-cm prefabricated skin flap, vascularized by the left epigastric vein, was created in rabbit models.
- A silicone sheet was used in half the models to impede neovascularization from the recipient bed.
- Flap viability and survival rates were assessed in both experimental groups.
Main Results:
- Both experimental groups exhibited excellent flap viability.
- No statistically significant difference in survival rates was observed between flaps with and without impeded neovascularization from the recipient bed.
- The prefabricated flaps demonstrated independence from the vascularity of the underlying recipient bed.
Conclusions:
- Prefabricated skin flaps nourished by an A-V shunt are viable and survive independently of the recipient bed's vascular supply.
- This prefabrication technique offers a robust method for creating donor sites not limited by local vascular territories.