Distraction osteogenesis
Pronunciation: os-tee-oh-JEN-uh-sis
Surgical technique using gradual mechanical distraction to stimulate new bone formation between separated bone segments.
Full Definition
Distraction osteogenesis, also known as the Ilizarov technique, is a reconstructive procedure that uses controlled mechanical tension to stimulate new bone and soft tissue formation. The process involves creating a controlled osteotomy or corticotomy and then gradually separating the bone segments using an external fixation device. The typical protocol includes a latency period of 5-7 days, followed by distraction at approximately 1mm per day. This technique can be used for limb lengthening, bone defect reconstruction, deformity correction, and treatment of nonunions. The biological principle relies on the bone's regenerative capacity when subjected to appropriate mechanical stimulation.
Usage
Usage note: Describe both the technique and the biological process in clinical documentation.
In Context
- "Distraction osteogenesis was planned to address the 4cm tibial bone defect following infection." — Reconstructive surgery consultation
- "The patient underwent distraction osteogenesis with excellent regenerate bone formation." — Follow-up clinic note