FRCS (ORL-HNS) · SECTION 1 SBA

Mandibular osteoradionecrosis

Five years after 66 Gy oropharyngeal radiotherapy, a patient has exposed mandibular bone, a pathological fracture and an orocutaneous fistula despite conservative care. What is the best definitive management?

CHOOSE ONE ANSWER

Best of five

  1. A. Segmental mandibulectomy with vascularised composite reconstruction after optimisation
  2. B. Pentoxifylline and tocopherol as sole definitive therapy
  3. C. Hyperbaric oxygen followed by limited sequestrectomy
  4. D. Marginal mandibulectomy preserving the fractured inferior border
  5. E. Suppressive antibiotics with indefinite tube feeding
ANSWER AND REASONING

A. Segmental mandibulectomy with vascularised composite reconstruction after optimisation

Advanced osteoradionecrosis with fracture/fistula is a reconstructive problem as well as infection control; vascularised bone and soft tissue are usually required.

Why every option is right or wrong

A. Segmental mandibulectomy with vascularised composite reconstruction after optimisation: Fracture and fistula indicate advanced disease unlikely to heal with surface measures; excision to bleeding bone and vascularised reconstruction provides durable tissue and stability.

B. Pentoxifylline and tocopherol as sole definitive therapy: Medical treatment may help selected early disease but cannot restore continuity in a fractured, fistulating mandible.

C. Hyperbaric oxygen followed by limited sequestrectomy: This does not provide reliable structural reconstruction for full-thickness fracture and fistula.

D. Marginal mandibulectomy preserving the fractured inferior border: Marginal resection leaves mechanically and biologically compromised bone in advanced full-thickness disease.

E. Suppressive antibiotics with indefinite tube feeding: This may palliate infection temporarily but does not remove necrotic bone or close the fistula in a fit reconstructive candidate.

What if the scenario changed?

If there were a small asymptomatic area of exposed bone without fracture or fistula, meticulous oral care and conservative debridement could be appropriate.

EDUCATIONAL USE

Independent Clinora educational preparation material; not official JCIE content, an accredited programme, or a substitute for local policy and specialist clinical judgement.

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