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Hyaluronic acid dermal filler injection increases the survival of rat dorsal skin flaps

  • Experimental Study
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European Journal of Plastic Surgery Aims and scope Submit manuscript

Abstract

Background

Distal tip necrosis of random pattern skin flaps is the most occurring complication in skin flap surgery. Delay phenomenon augments flap vascularity and increases survival of skin flaps. In this study, hyaluronic acid dermal filler was used in the rat dorsal skin via subcutaneous injection to reveal its role in the flap viability and the delay phenomenon.

Methods

Eighteen rats were randomized in 3 groups. Group 1 rats were the control group. Group 2 rats underwent surgical delay procedure. Group 3 was pretreated with 1 mL of hyaluronic acid dermal filler injection. Seven days after, a caudally based dorsal skin flap was elevated. Flap necrosis area, intensity of the newly formed vessels, subdermal vascular architecture, and inflammation severity in the flaps were evaluated.

Results

Flap necrosis areas were found statistically significant among the groups. The mean number of subdermal capillaries increased significantly in group 3. The mean values of vessel diametres were statistically significant among the groups. Inflammation scores of groups 2 and 3 were low or moderate levels.

Conclusions

HA injection increases the survival of rat dorsal flaps; however, it is not superior or equivalent to surgical delay at least with this volume, concentration, and delay time.

Level of evidence: Not ratable.

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Funding

This work was supported by Mersin University Scientific Research and Project Unit with project number 2020–1-TP3-4037.

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Correspondence to Nazım Gümüş.

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Ethical approval

This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Mersin University (date:10/02/2020, no: 01–02). All institutional and national guidelines for the care and use of laboratory animals were followed. This study was performed in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals.

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Not applicable.

Conflict of interest

Nazım Gümüş, Erkan Pinegöz, and Ferah Tuncel declare no competing interests.

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Gümüş, N., Pinegöz, E. & Tuncel, F. Hyaluronic acid dermal filler injection increases the survival of rat dorsal skin flaps. Eur J Plast Surg 46, 181–188 (2023). https://doi.org/10.1007/s00238-022-02004-6

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  • DOI: https://doi.org/10.1007/s00238-022-02004-6

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