Summary
There have been few long-term studies regarding the change of bony cleft defects in
cleft lip and palate after palatoplasty. The purpose of this study was to evaluate
the regenerated bone formed in bony cleft defects and the change in bony cleft width
after palatoplasty using computed tomography (CT). Thirty non-syndromic unilateral
complete cleft lip and palate patients were retrospectively reviewed. The patients
underwent palatoplasty at an average age of 14.32 months. CT was performed at an average
age of 9.8 years. The authors evaluated the regenerated bone volume ratio, remnant
bony cleft area ratio and change in bony cleft width at the posterior nasal spine.
The relative locations of the regenerated bone lesion and the bony cleft to the hard
palate were measured. Regenerated bone was observed in all patients. The average regenerated
bone volume ratio was 61.1%, and the largest regenerated bone was usually located
in the anterior half of the hard palate. The average remnant bony cleft area ratio
was 7.6%, and the widest bony cleft was usually located in the anterior 1/3 and the
posterior 1/3. The remnant bony cleft and non-regenerated bone lesion were rarely
located in the middle 1/3. The bony cleft width at the posterior nasal spine decreased
significantly after palatoplasty. Hard palatal bony cleft defects after palatoplasty
were decreased by regenerated bone, and possibly by the contracting force of the scar
at the midline of the hard palate, and the continuous pressure of the surrounding
tissues.
Keywords
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Article info
Publication history
Published online: July 23, 2012
Accepted:
May 26,
2012
Received:
December 19,
2011
Identification
Copyright
© 2012 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Inc. All rights reserved.
