[Experience of midfacial distraction osteogenesis in upper airway stenosis].
OBJECTIVE
To investigate the therapeutic effects of upper airway stenosis after Le Fort III osteotomy and midfacial distraction osteogenesis (DO).


METHODS
Eleven cases (age, 5-16 yrs) with severe midface dysostosis complicated with exophthalmos, anterior crossbite and upper airway stenosis were treated by using Le Fort III osteotomy and midfacial DO from August 2000 to February 2007. The 3D reconstruction of the upper-airway from CT data was used to evaluate the upper airway volume before and after the operation. And meanwhile polysomnography was carried out to demonstrate the upper airway functional changes.


RESULTS
There was a 64.3% mean increase [mean, (9.13 +/- 6.94) ml, P < 0.05] in upper airway volume in the 11 cases after the operations. It showed that there was significant improvements in the indexes of polysomnography after the operations, such as apnea and hypopnea index, average SaO2, minimum oxygen saturation and snore index.


CONCLUSIONS
The Le Fort III osteotomy and midfacial distraction osteogenesis can efficiently relieve the symptoms of upper-airway stenosis in severe midfacial dysostosis.
Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
Hai-song
HS
Xu
Xiong-zheng
XZ
Mu
Zhe-yuan
ZY
Yu
Sheng-zhi
SZ
Feng
Jia-yi
JY
Han
Di-sheng
DS
Zhang
D000168:Acrocephalosyndactylia / Q000150:complications; D000293:Adolescent; D000402:Airway Obstruction / Q000209:etiology / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D003394:Craniofacial Dysostosis / Q000150:complications; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D019857:Osteogenesis, Distraction / Q000379:methods*; D019340:Osteotomy, Le Fort; D016896:Treatment Outcome