Long-Term Skeletal and Dental Changes in Patients with Cleft Lip and Palate After Maxillary Distraction: A Report of Three Cases Treated with a Rigid External Distraction Device

CRANIO® ◽  
2005 ◽  
Vol 23 (2) ◽  
pp. 152-157 ◽  
Author(s):  
Kiyoshi Harada ◽  
Masaru Sato ◽  
Ken Omura
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Distraction Device ◽  
Maxillary Distraction

Long-term Follow-up after Maxillary Distraction Osteogenesis in Growing Children with Cleft Lip and Palate

2007 ◽  
Vol 44 (3) ◽  
pp. 274-277 ◽  
Author(s):  
Chiung-Shing Huang ◽  
Pandurangan Harikrishnan ◽  
Yu-Fang Liao ◽  
Ellen W. C. Ko ◽  
Eric J. W. Liou ◽  
...  
Keyword(s):  
Distraction Osteogenesis ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
University Hospital ◽  
Anterior Nasal Spine ◽  
Distraction Device ◽  
Long Term Follow Up ◽  
The University ◽  
Maxillary Distraction

Objective: To evaluate the changes in maxillary position after maxillary distraction osteogenesis in six growing children with cleft lip and palate. Design: Retrospective, longitudinal study on maxillary changes at A point, anterior nasal spine, posterior nasal spine, central incisor, and first molar. Setting: The University Hospital Craniofacial Center. Main Outcome Measure: Cephalometric radiographs were used to measure the maxillary position immediately after distraction, at 6 months, and more than 1 year after distraction. Results: After maxillary distraction with a rigid external distraction device, the maxilla (A point) on average moved forward 9.7 mm and downward 3.5 mm immediately after distraction, moved backward 0.9 mm and upward 2.0 mm after 6 months postoperatively, and then moved further backward 2.3 mm and downward 6.8 mm after more than 1 year from the predistraction position. Conclusion: In most cases, maxilla moved forward at distraction and started to move backward until 1 year after distraction, but remained forward, as compared with predistraction position. Maxilla also moved downward during distraction and upward in 6 months, but started descending in 1 year. There also was no further forward growth of the maxilla after distraction in growing children with clefts.

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