“…), with accuracy verified by a second reviewer (N.I.Z.). The following information regarding each eligible trial was recorded: study reference details (e.g., first author, year of publication), study design, number 14,17,18 ; and flap failure, defined as total flap loss 9,14,17,18 or flap failure. 15,16 Additional complications of interest that were not on this list were noted.…”