Abstract
Background Partial or complete flap necrosis is a detrimental outcome complicating reconstructive surgery. The purpose of this study was to evaluate the impact of flap overdesign on viability in the rat model. Methods Forty Sprague-Dawley rats were equally divided into four groups receiving flaps of varying length-to-width ratios: 2:1, 3:1, 4:1, and 5:1. All animals had caudally based, modified McFarlane-style flap created. Areas of survival were assessed 14 days postoperatively and compared among groups using one-way analysis of variance. Results The mean areas of flap survival were 8.0 ± 0.0 cm 2 , 7.8 ± 1.1 cm 2 , 8.3 ± 1.1 cm 2 , and 8.1 ± 1.5 cm 2 for the 2:1, 3:1, 4:1, and 5:1 length-to-width ratio groups, respectively. There were no statistically significant differences in mean areas of flap survival among groups ( p > 0.05). Conclusion Flap overdesign does not increase the risk of flap necrosis in a random-pattern flap.
Highlights
Partial or complete flap necrosis is a detrimental outcome complicating reconstructive surgery
Flap overdesign does not increase the risk of flap necrosis in a randompattern flap
We initially hypothesized that overdesigned flaps would result in proportionally diminished areas of flap survival, but based on our findings, it appears that flap overdesign does not impact the viability of random-pattern flaps in the rat model
Summary
Partial or complete flap necrosis is a detrimental outcome complicating reconstructive surgery. The purpose of this study was to evaluate the impact of flap overdesign on viability in the rat model. Methods Forty Sprague-Dawley rats were divided into four groups receiving flaps of varying length-to-width ratios: 2:1, 3:1, 4:1, and 5:1. All animals had caudally based, modified McFarlane-style flap created. Areas of survival were assessed 14 days postoperatively and compared among groups using one-way analysis of variance
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