• Migie Lee, Ronald Y Chin, Guy D Eslick, Niranjan Sritharan, and Suchitra Paramaesvaran.
• Department of Otolaryngology, Head and Neck Surgery, Nepean Hospital, Sydney, Australia.
• J Craniomaxillofac Surg. 2015 Dec 1; 43 (10): 2026-33.

IntroductionOsteoradionecrosis of the mandible is a devastating complication of radiotherapy in patients with head and neck cancer. Many cases present at a late stage, from months to years following completion of radiation therapy. When medical treatment fails, surgery may be required with a variety of free flaps available for microvascular reconstructive techniques.ObjectiveTo conduct a systematic review of the literature investigating the outcomes of free flap reconstruction of the jaw in mandibular osteoradionecrosis and determine the failure rates of different flap tissue.MethodsA systematic literature search was performed using Medline (Ovid) Pubmed and Embase databases and Google Scholar. Primary outcome measures were flap failures and complications, with donor site complications representing the secondary outcome measure. Analysis of pooled outcomes was undertaken for different flaps.Results333 articles were identified and 15 articles met the final inclusion criteria, detailing 368 primary free tissue flap transfers. There was a flap failure rate of 9.8%. There were 146 post-operative complications (39.7%), the most common being fistula formation (8.4%), hardware plate exposure (7.1%) and flap wound infections (6.5%).ConclusionThe fibula is the workhorse free flap for reconstruction in mandibular osteoradionecrosis. Evidence to date is largely limited with the need for larger powered multi-institutional prospective studies to determine the ideal flap donor tissue and evaluate patient and treatment predictors of free flap outcomes in order to tailor the best patient-based surgical approach for mandibular osteoradionecrosis.Crown Copyright © 2015. Published by Elsevier Ltd. All rights reserved.

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