Purpose: Mandibulotomy is a recognised surgical approach to tumours of the oral cavity and oropharynx. However, the nature and frequency of complications associated with this procedure varies in many studies. We report our experience with access osteotomies, with special reference to radionecrotic complications. Procedures: A retrospective study of 18 consecutive patients undergoing planned mandibular osteotomies as part of the ablative surgery was performed. Various flaps were used for tissue closure: myocutaneous flap (n = 8), nasolabial flap (n = 1) and radial forearm free vascular flap (n = 6). Primary closure using remaining mucosa was achieved in 3 patients. Results: Complete healing of the osteotomy was noted in 13 patients, and 5 patients (27%) developed major wound healing problems and osteoradionecrosis. Dental problems with resorption of the alveolar bone crest and loosening of the teeth adjacent to the osteotomy were seen in 7 patients (39%). Conclusions: Adequate soft-tissue closure is as important for a successful outcome as the type of osteotomy and fixation method applied. Extraction of the incisors is recommended for easier and safer tissue adaptation, especially when flaps are used for coverage and the osteotomy site will be included in the radiation field.

Keywords:
Osteotomy, Mandible, Osteoradionecrosis
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© 2005 S. Karger AG, Basel
2006
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