distraction osteogenesis
Surgical technique using gradual mechanical separation of bone segments to stimulate new bone formation.
Full Definition
Distraction osteogenesis is a biological process where new bone and soft tissue are generated through gradual, controlled separation of bone segments. The technique involves creating a surgical osteotomy, applying a distraction device, and then slowly separating the bone segments at a rate of approximately 1mm per day. This stimulates the formation of new bone in the gap through the principles of tension-stress. In oral maxillofacial surgery, it is commonly used for mandibular lengthening, maxillary advancement, and correction of facial asymmetries, offering advantages over traditional bone grafting techniques.
Usage
Usage note: Always document the distraction rate, latency period, and consolidation phase in treatment plans.
In Context
- "Mandibular distraction osteogenesis was initiated at a rate of 1mm per day following the latency period." — Post-operative management plan
- "The distraction device showed excellent bone formation in the distraction gap at 8 weeks post-activation." — Radiographic follow-up report