The lateral forearm flap versus traditional upper extremity flaps: A comparison of donor site morbidity and flap thickness

Abstract

AbstractIntroductionThe lateral forearm flap (LFF) is a thin fasciocutaneous flap with a donor site that can be closed primarily.MethodsA retrospective analysis of donor site morbidity and hand function was performed in patients who underwent a radial forearm flap (RFF), ulnar artery perforator flap (UAPF), or LFF. Flap thickness was evaluated radiographically in 50 control patients.ResultsOf 134 patients (lateral forearm flap: n = 49, RFF: n = 47, UAPF: n = 38), the LFF demonstrated significantly faster return to baseline hand grip strength (3 months vs. 12 months in RFF and UAPF; p < 0.001), had significantly fewer donor site complications (6.1% compared to 6.4% in RFF and 28.9% in UAPF; p = 0.003) and fewer sensory deficits (2.0% compared to 6.4% in RFF and 15.8% in UAPF sites; p = 0.013). The radiographic study confirmed the LFF to be the thinnest of all upper extremity flap options.ConclusionsThe LFF is an excellent forearm‐based flap option with thin, pliable tissue and low donor site morbidity.