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A revised classification of the cleft lip and palate
Mansoor Khan1, Hidayat Ullah1, Shazia Naz1
1Plastic and Reconstructive Surgery, Hayatabad Medical Complex, Peshawar, Pakistan.
Summary
A revised classification system accurately describes all cleft lip and palate deformities, including submucous cleft palate subtypes. This anatomical classification improves upon previous systems for better diagnostic and treatment planning.
Area of Science:
- Craniofacial anomalies
- Plastic surgery
- Pediatric dentistry
Background:
- Submucous cleft palate (SCP) presents with muscular diastasis of the velum, intact mucosa, and potential bifid uvula or hard palate defects.
- Previous classifications have not adequately addressed SCP on an anatomical basis.
Purpose of the Study:
- To revise the Smith-modified Kernahan 'Y' classification for cleft lip and palate (CLP) deformities.
- To anatomically classify the diverse subtypes of submucous cleft palate.
Main Methods:
- A study of 163 CLP cases was conducted in Peshawar, Pakistan, from November 2010 to December 2011.
- Cases were classified using the standard Smith-modified Kernahan 'Y' and a revised version.
- Data analysis was performed using SPSS version 17.
Main Results:
- The standard Smith-modified Kernahan 'Y' classification described 93.9% of CLP cases but failed to detail SCP subtypes in 6.13%.
- The revised Smith-modified Kernahan 'Y' classification successfully described all CLP deformities, including all SCP anatomical variations.
Conclusions:
- The revised Smith-modified Kernahan 'Y' classification provides a comprehensive anatomical description for all cleft lip and palate deformities.
- This enhanced classification system addresses the limitations of previous systems in detailing submucous cleft palate subtypes.
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