Feasibility of transcutaneous mandibular distraction using an internal device.

摘要

The concept of distraction osteogenesis was first reported in 1905 by Codivilla, and later attempted for lower limb-lengthening by Abbot in 1927. In 1950, Ilizarov clinically demonstrated large amounts of new bone formation in an improved technique that bears his name. Subsequently, Snyder applied this principle for mandibular lengthening in dogs. In 1992, McCarthy first demonstrated the clinical usefulness of distraction osteogenesis after a series of experimental studies in dogs using an extraoral device. In a recent review of 10 years' experience of this technique for mandibular lengthening, McCarthy concluded that, although the technique had been very successful, there had been a number of issues associated with the prolonged external fixation. There was a 13% soft tissue pin-track infection rate, and 1 in 12 patients experienced pin dislodgement that required further surgery. He also noted problems with the scars, which may become hypertrophic because the external fixator had to be in place for a total mean duration of 98 days.