Long-term follow-up after maxillary distraction osteogenesis in growing children with cleft lip and palate

Chiung Shing Huang, Pandurangan Harikrishnan, Yu Fang Liao, Ellen W C Ko, Eric J W Liou, Philip K T Chen

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)274-277
Number of pages4
JournalCleft Palate-Craniofacial Journal
Issue number3
Publication statusPublished - May 1 2007
Externally publishedYes


  • Cephalometry
  • Cleft lip and palate
  • Distraction osteogenesis
  • Growth
  • Maxilla

ASJC Scopus subject areas

  • Surgery
  • Dentistry(all)


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