monobloc advancement
Pronunciation: MON-oh-blok
Single-stage surgical procedure that advances the entire upper and middle facial skeleton as one unit.
Full Definition
Monobloc advancement is a complex craniofacial procedure where the frontal bone, orbits, and midface are moved forward together in a single surgical session. This technique is primarily used to treat severe syndromic craniosynostosis conditions like Crouzon or Apert syndrome, where patients have significant midface retrusion and increased intracranial pressure. The procedure involves extensive osteotomies and requires careful coordination between neurosurgical and plastic surgery teams. Recovery is lengthy due to the magnitude of bony movement and soft tissue adjustment required.
Usage
Usage note: Often combined with distraction osteogenesis for gradual advancement.
In Context
- "The patient underwent monobloc advancement with external distraction to correct severe midface hypoplasia." — Surgical consultation note
- "Monobloc advancement carries higher morbidity than staged procedures but provides dramatic correction." — Treatment planning discussion