Related Experiment Video
Updated: Mar 20, 2026

11:12
In situ Transverse Rectus Abdominis Myocutaneous Flap: A Rat Model of Myocutaneous Ischemia Reperfusion Injury
Published on: June 8, 2013
14.2K
Calculation of contraction patterns in rat skin flap model
Tamer Yavas1, Merdan Serin2, Mehmet Bayramicli3
1a Private Plastic Surgery Practice , Istanbul , Turkey.
Journal of Plastic Surgery and Hand Surgery
|May 22, 2016
Summary
A new mathematical formula accurately corrects for skin flap contraction in rats, improving the interpretation of experimental results. This method enhances the precision of necrotic area measurements in wound healing studies.
Area of Science:
- Regenerative Medicine
- Wound Healing Research
- Surgical Innovation
Background:
- Rat abdominal skin flaps were monitored to understand their contraction behavior.
- A novel mathematical formula was developed to quantify this contraction.
Purpose of the Study:
- To develop and validate a mathematical formula for correcting skin flap contraction.
- To improve the accuracy of necrotic area measurements in experimental models.
Main Methods:
- 24 male rats underwent abdominal skin flap surgery based on inferior epigastric neurovascular bundles.
- Steroids were applied under flaps in experimental groups to modulate contraction rates.
Main Results:
- Contraction rates were notably higher in necrotic tissues across both control and steroid-treated groups.
- Corrected measurements of necrotic area on day seven significantly exceeded actual measurements (p=0.0001).
Conclusions:
- The developed mathematical formula enables the calculation of pre-contraction values for experimental skin flaps.
- This formula allows for more accurate interpretation of experimental results in flap studies.

