marginal mandibulectomy

marginal mandibulectomy

One of two major types of mandibular resection (the other being segmental mandibulectomy). In a marginal mandibulectomy, a portion of the mandible (typically the alveolus and the medial plate) is resected, leaving the continuity intact. If the tumour is fixed to and only involves the periostium, a marginal mandibulectomy should be considered—once the cancer has penetrated the marrow, tumour cells can spread to the neurovascular bundle. In the case of marrow spread, the procedure should include margins of > 2 cm beyond the visible extent of bony involvement.
References in periodicals archive ?
Due to huge size of the mass, it was treated with combined marginal mandibulectomy for better exposure enabling complete surgical removal.
Segmental or marginal mandibulectomy was performed in all 10 patients, and the PMF was used successfully to cover exposed bone or reconstructive plates in each case.
It should be emphasized that all 10 patients whose cases we reviewed had either a segmental or marginal mandibulectomy performed as part of the tumor extirpation.
Later the tumor was resected by our operating team under general anaesthesia followed by a routine marginal mandibulectomy and the specimen was sent again in-toto for histopathological examination.
Five patients (62%) had a marginal mandibulectomy, 1 required segmental mandibulectomy and 1 required partial pharyngectomy.
A marginal mandibulectomy extending from left of midline to right midbody was performed in continuity with the tumor.