[Management of micrognathia deformity associated with obstructive sleep apnea syndrome by distraction osteogenesis].
OBJECTIVE
To review the early results of lengthening of the mandible by distraction osteogenesis for the correction of micrognathia deformity and treatment of the obstructive sleep apnea syndrome (OSAS) simultaneously.


METHODS
5 cases with micrognathia deformity associated with OSAS resulted from unilateral/bilateral temporomandibular joint ankylosis had undergone mandibular distraction osteogenesis. In all of the patients intraoral device was employed. Cephalometric radiographs and polysomnograms were obtained preoperatively and postoperatively.


RESULTS
The average distraction distance was 15.28 mm (range 8.5 mm to 24.4 mm). The micrognathia deformity was corrected effectively, at the mean time the incapacious pharyngeal airway was ameliorated. The patients' Apnea Index (AI) had been decreasing, SaO(2) during sleep had got to rise.


CONCLUSIONS
Compared with the traditional surgery for the micrognathia associated with OSAS, the technique of mandibular distraction osteogenesis has the advantages of avoiding bone grafting and donor side morbidity, expanding the surrounding soft tissue concurrently, reducing the extent of operation and stability of the treatment effects.
Tang
Y
Y
Department of Oral and Maxillofacial Surgery, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
Gao
Y
Y
Shen
G
G
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000002:abnormalities*; D019857:Osteogenesis, Distraction; D020181:Sleep Apnea, Obstructive / Q000209:etiology / Q000601:surgery*