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The reverse sural artery flap– How do modifications boost its reliability? A systematic analysis of the literature

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The reverse sural artery flap (RSAF) was first described approximately four decades ago and has since been used frequently for reconstruction of soft tissue defects in the distal part of… Click to show full abstract

The reverse sural artery flap (RSAF) was first described approximately four decades ago and has since been used frequently for reconstruction of soft tissue defects in the distal part of the leg. Although the popularity of this flap never reached the extent of that of free perforator flaps, it still serves as a reliable alternative. This has been demonstrated by the increased rate of publication on the technique in recent years. The number of authors reporting data has risen up to 20 reports a year. During this time, several new modifications of the flap were inaugurated in order to boost the efficiency and reliability of the flap. The goal of this systematic analysis of the literature was to gain information on the influences of the modifications of the RSAF with regard to consistency and complication rates. An overall survival rate of 95% and a rate of complications of 14% were reported in all the analyzed cases. Some modifications were able to improve flap viability but not at a statistically significant extent. Venous supercharging and the adipofascial variant of the RSAF provided the best results. The RSAF is still a remarkable flap design, especially as a backup solution or in circumstances without a microsurgical skilled surgeon. Further investigation with controlled randomized prospective trials is vital to confirm this finding with more evidence.

Keywords: reverse sural; analysis literature; artery flap; sural artery; systematic analysis

Journal Title: JPRAS Open
Year Published: 2020

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