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KMID : 0358819900170050919
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Journal of Korean Society of Plastic and Reconstructive Surgeons
1990 Volume.17 No. 5 p.919 ~ p.927
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THE FASCIO-VASCULAR PEDICLE FOR REVASCULARIZATION OF OTHER TISSUES
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Abstract
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A fascio-vascular pedicle based on the epigastric vessels was developed in a rat model to determine if it could be used as a "universal carrier" to revascularize a new composite flap. The effects of time course, carrier size and flap ischemia on the revascularization process were studied. A 2.5 X 4cm or 1 x 4cm fascial patch pedicled on the vessels was transferred under bipedicled 2.5 X 4, 6, or 8cm abdominal panniculo-cutaneous flaps. At different time intervals, the flap was raised as an island flap connected only by its vascular bundle then stured back in place. The skin perfusion by dermofluorometry and flap survival were both markedly increased on day 5(P<0.001). The wide carrier had a 93 % survival area, while the narrow carrier had only 71 %. The wide carrier induced relatively faster and better revascularization(P<0.05). Moderate ischemia promoted revascularization(P<0.01). An india ink injection study and histologic examination provided visual evidence of revascularization. This fascio-vascular pedicle is a promising model for prefabrication of complex new composite flaps and for studying the process of revascularization between the laryers. Based on these findings and further investigations, we are conductiong clinical applications of the prefabrication and free transfer of the seconsdary island flap in humans.
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KEYWORD
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