hemimandibulectomy
Pronunciation: HEH-mee-man-DIB-yoo-lek-toh-mee
Surgical removal of half of the mandible, typically performed for extensive mandibular tumors.
Full Definition
Hemimandibulectomy involves the surgical resection of approximately half of the mandible, usually extending from the midline to the temporomandibular joint or angle of the mandible. This extensive procedure is indicated for large mandibular tumors, osteoradionecrosis, or aggressive bone pathology. The operation significantly affects facial symmetry, dental occlusion, and oral function. Immediate or delayed reconstruction is typically required to restore mandibular continuity and function. The procedure has substantial implications for speech, swallowing, and quality of life.
Usage
Usage note: Distinguish from marginal mandibulectomy, which preserves mandibular continuity.
In Context
- "Left hemimandibulectomy was performed for extensive osteosarcoma with immediate fibula reconstruction." — Operative report
- "The patient required hemimandibulectomy due to extensive osteoradionecrosis involving the left mandible." — Treatment plan