The use of SymNose for quantitative assessment of lip symmetry following repair of complete bilateral cleft lip and palate

The use of SymNose for quantitative assessment of lip symmetry following repair of complete bilateral cleft lip and palate

Abstract Introduction The SymNose computer program has been proposed as an objective method for the quantitative assessment of lip symmetry following unilateral cleft lip repair. This study aims to demonstrate the use of SymNose in patients with complete bilateral cleft lip and palate (BCLP), a grou...

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Bibliographic Details
Published in:Journal of cranio-maxillo-facial surgery Vol. 42; no. 5; pp. 454 - 459
Main Authors: Russell, James H.B, Kiddy, Harriet C, Mercer, Nigel S
Format: Journal Article
Language:English
Published: Scotland Elsevier Ltd 01-07-2014
Subjects:
Bilateral cleft lip and palate
Case-Control Studies
Cephalometry - methods
Child
Cleft Lip - surgery
Cleft Palate - surgery
Cohort Studies
Computer-based
Dentistry
Eyelids - pathology
Humans
Image Processing, Computer-Assisted - methods
Lip - pathology
Nose - pathology
Photography - methods
Retrospective Studies
Software
Surgery
Symmetry
SymNose
Photographs
Computer-based
Bilateral cleft lip and palate
SymNose
Symmetry
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Summary:Abstract Introduction The SymNose computer program has been proposed as an objective method for the quantitative assessment of lip symmetry following unilateral cleft lip repair. This study aims to demonstrate the use of SymNose in patients with complete bilateral cleft lip and palate (BCLP), a group previously excluded from computer-based analysis. Methods A retrospective cohort study compared several parameters of lip symmetry between BCLP cases and non-cleft controls. 15 BCLP cases aged 10 (±1 year) who had undergone primary repair were recruited from the patient database at the South West Cleft Unit, Frenchay Hospital. Frontal facial photographs were selected for measurement. 15 age-matched controls were recruited from a local school. Lip symmetry was expressed as: percentage mismatch of left vermillion border and upper lip area over the right, horizontal lip tilt and lateral deviation of the lip. Results A significant increase in lip asymmetry was found in the BCLP group expressed as upper vermillion border mismatch across computer-defined and user-defined midlines (mean difference was 16.4% ( p  < 0.01) and 17.5% ( p  < 0.01) respectively). Conclusions The results suggest that a significant degree of lip asymmetry remains in BCLP patients even after primary repair. This challenges previous assumptions that those with bilateral defects would be relatively symmetrical.
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ISSN:1010-5182
1878-4119
DOI:10.1016/j.jcms.2013.05.041