Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies

Background: Free and pedicled flaps are both valuable surgical strategies for lower limb reconstruction. Evidence that compares both techniques is scarce. Our aim is to synthetise all the comparative studies by conducting a meta-analysis to identify post-operative outcomes. Method: A systematic revi...

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Main Authors: Matteo Scampa, Vladimir Mégevand, Domizio Suva, Daniel F. Kalbermatten, Carlo M. Oranges
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/11/13/3672
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author Matteo Scampa
Vladimir Mégevand
Domizio Suva
Daniel F. Kalbermatten
Carlo M. Oranges
author_facet Matteo Scampa
Vladimir Mégevand
Domizio Suva
Daniel F. Kalbermatten
Carlo M. Oranges
author_sort Matteo Scampa
collection DOAJ
description Background: Free and pedicled flaps are both valuable surgical strategies for lower limb reconstruction. Evidence that compares both techniques is scarce. Our aim is to synthetise all the comparative studies by conducting a meta-analysis to identify post-operative outcomes. Method: A systematic review of pubmed, EMBASE, Cochrane library, and Web of Science was conducted, aiming at articles comparing the outcomes of free versus pedicled flaps in lower limb reconstruction. A pooled analysis with the Mantel and Haenszel methods and random effect analysis provided results as a risk ratio with a 95% confidence interval. Results: 10 retrospective studies were selected. While the flap necrosis rate did not differ significantly between techniques (RR 1.35, 95%CI 0.76–2.39, <i>p</i> = 0.31), the partial flap necrosis rate was significantly lower in free flaps (RR 0.45, 95%CI 0.22–0.91, <i>p</i> = 0.03). The overall complication rate (RR 0.83, 95%CI 0.64–1.07, <i>p</i> = 0.16) and revision surgery rate (RR 1.38, 95%CI 0.55–3.50, <i>p</i> = 0.49) did not differ significantly. No significant difference was found in the high aesthetic satisfaction rate (RR 1.76, 95%CI 0.57–5.41, <i>p</i> = 0.32) and post-operative infection rate (RR 0.85, 95%CI 0.55–1.33, <i>p</i> = 0.48). Conclusion: Despite important variability in the choice of flaps and outcomes reported among studies, free and pedicled flaps appear to be reliable surgical strategies for lower limb reconstruction with similar surgical outcomes.
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spelling doaj.art-feff26c91b984793a24b6d45769139d32023-12-01T21:32:28ZengMDPI AGJournal of Clinical Medicine2077-03832022-06-011113367210.3390/jcm11133672Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative StudiesMatteo Scampa0Vladimir Mégevand1Domizio Suva2Daniel F. Kalbermatten3Carlo M. Oranges4Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Geneva University, 1205 Geneva, SwitzerlandDepartment of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Geneva University, 1205 Geneva, SwitzerlandBone Infection Unit, Department of Orthopedic Surgery, Geneva University Hospitals, University of Geneva, 1205 Geneva, SwitzerlandDepartment of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Geneva University, 1205 Geneva, SwitzerlandDepartment of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Geneva University, 1205 Geneva, SwitzerlandBackground: Free and pedicled flaps are both valuable surgical strategies for lower limb reconstruction. Evidence that compares both techniques is scarce. Our aim is to synthetise all the comparative studies by conducting a meta-analysis to identify post-operative outcomes. Method: A systematic review of pubmed, EMBASE, Cochrane library, and Web of Science was conducted, aiming at articles comparing the outcomes of free versus pedicled flaps in lower limb reconstruction. A pooled analysis with the Mantel and Haenszel methods and random effect analysis provided results as a risk ratio with a 95% confidence interval. Results: 10 retrospective studies were selected. While the flap necrosis rate did not differ significantly between techniques (RR 1.35, 95%CI 0.76–2.39, <i>p</i> = 0.31), the partial flap necrosis rate was significantly lower in free flaps (RR 0.45, 95%CI 0.22–0.91, <i>p</i> = 0.03). The overall complication rate (RR 0.83, 95%CI 0.64–1.07, <i>p</i> = 0.16) and revision surgery rate (RR 1.38, 95%CI 0.55–3.50, <i>p</i> = 0.49) did not differ significantly. No significant difference was found in the high aesthetic satisfaction rate (RR 1.76, 95%CI 0.57–5.41, <i>p</i> = 0.32) and post-operative infection rate (RR 0.85, 95%CI 0.55–1.33, <i>p</i> = 0.48). Conclusion: Despite important variability in the choice of flaps and outcomes reported among studies, free and pedicled flaps appear to be reliable surgical strategies for lower limb reconstruction with similar surgical outcomes.https://www.mdpi.com/2077-0383/11/13/3672free flappedicled flapmeta-analysisoutcomescomparativelower limb
spellingShingle Matteo Scampa
Vladimir Mégevand
Domizio Suva
Daniel F. Kalbermatten
Carlo M. Oranges
Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies
Journal of Clinical Medicine
free flap
pedicled flap
meta-analysis
outcomes
comparative
lower limb
title Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies
title_full Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies
title_fullStr Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies
title_full_unstemmed Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies
title_short Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies
title_sort free versus pedicled flaps for lower limb reconstruction a meta analysis of comparative studies
topic free flap
pedicled flap
meta-analysis
outcomes
comparative
lower limb
url https://www.mdpi.com/2077-0383/11/13/3672
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