Microvascular Free-Flap Head and Neck Reconstruction: The Utility of the Modified Frailty Five-Item Index.

 The mFI-5 score may be a potentially significant tool in the risk stratification of patients undergoing head and neck free-flap reconstruction as opposed to commonly utilized risk factors. Preoperative radiotherapy is significantly associated with postoperative complications. Appropriate preoperative assessment may help tailor patient care preoperatively.