Hemimandibulectomy
Pronunciation: HEM-ee-man-DIB-yoo-LEK-toh-mee
Surgical resection of one half of the mandible, typically performed for the management of extensive jaw tumours or severe osteonecrosis.
Full Definition
Hemimandibulectomy involves the removal of one lateral half of the mandible, usually from the midline symphysis to the condyle, and is a major ablative procedure within the scope of maxillofacial oncological surgery. It may be performed with or without condylar preservation (sub-condylar or including the condyle) depending on tumour extent. The procedure necessitates reconstructive planning, often involving a fibula free flap or reconstruction plate. In editorial work, 'hemimandibulectomy' must be distinguished from 'marginal mandibulectomy' (which preserves mandibular continuity) and 'segmental mandibulectomy' (removal of a segment without reaching the midline). Note British spelling: 'hemimandibulectomy' uses the 'hemi-' prefix consistently across registers.
Usage
Usage note: Distinguish clearly from 'marginal mandibulectomy' (continuity preserved) and 'segmental mandibulectomy' (partial resection without reaching midline). Solid compound, no hyphen.
In Context
- "A left hemimandibulectomy was performed, followed by immediate reconstruction with a fibula free flap and titanium plate." — Operative report
- "The oncology board recommended hemimandibulectomy after imaging confirmed tumour involvement extending to the mandibular canal." — Tumour board documentation