“…In contrast, the existing literature is inconsistent regarding the relationship of diabetes and flap failure (Las et al, ; Nahabedian, Singh, Deune, Silverman, & Tufaro, ; Sanati‐Mehrizy et al, ; Wong et al, ), and varies widely depending on anatomical site and flap type (Las et al, ). In head and neck surgery, overall flap failure has been reported five times higher in diabetic patients (Bozikov & Arnez, ; Rosado et al, ; Valentini et al, ), but a wider report by Las et al found no association between DM and free flap failure; however, foot and ankle flap failure rates were over nine times higher in diabetic patients (Las et al, ). Clinical and preclinical evidence suggests that DM alone does not compromise free flap survival (Cooley, Hanel, Anderson, Foster, & Gould, ; Cooley, Hanel, Lan, Li, & Gould, ; Khouri et al, ; Wong et al, ); this is supported by a large‐scale retrospective review in which flap survival rates were comparable between diabetic and nondiabetic patients (Sanati‐Mehrizy et al, ).…”