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Craniofacial morphology in isolated cleft palate prior to palatoplasty
Z Smahel1, M Brousilová, Z Müllerová
1Institute of Experimental Medicine, Czechoslovak Academy of Sciences, Prague.
Insights
Children with isolated cleft palate exhibit distinct craniofacial differences, including shorter jaws and reduced upper face height, compared to controls. These findings offer insights into the pathogenesis of isolated cleft palate.
Area of Science:
- Craniofacial development
- Pediatric surgery
- Genetics and developmental biology
Background:
- Craniofacial anomalies, such as cleft palate, present complex challenges in pediatric care.
- Understanding the underlying skeletal morphology is crucial for effective surgical planning and outcomes.
Purpose of the Study:
- To investigate and compare the cephalometric characteristics of children with isolated cleft palate (CP) and unilateral cleft lip and palate (UCLP) before surgical repair.
- To identify specific skeletal differences associated with isolated CP.
Main Methods:
- Utilized roentgencephalometry to analyze craniofacial structures in 30 boys and 30 girls with isolated CP (ages 3.5-4.5 years).
- Compared these measurements with a control group and a group of 20 boys with UCLP, all pre-palatoplasty.
Main Results:
- Isolated CP group showed maxillary and mandibular shortening, reduced posterior upper face height, and nasal cavity widening compared to controls.
- Unlike UCLP, isolated CP did not show anterior upper face shortening or lower face elongation.
- No posterior maxillary displacement, dentoalveolar retroinclination, or increased interocular distance was observed in the CP group.
Conclusions:
- The observed jaw shortening in isolated CP may be significant for understanding its pathogenesis.
- While both CP and UCLP groups exhibited similar lower jaw shortening and nasal cavity widening, UCLP did not show maxillary depth reduction.
Abstract:
Roentgencephalometry was used in a study of 30 boys and 30 girls with isolated cleft palate prior to palatoplasty. Their ages ranged from 3.5 to 4.5 years. These patients were compared with a control series and with a group of 20 boys with unilateral cleft lip and palate, examined similarly prior to palatoplasty. The isolated cleft palate (CP) group showed four basic differences from the control group: a shortening of maxillary depth and mandibular length (body and ramus), a reduction of the posterior height of the upper face, and a marked widening of the nasal cavity. In contrast to the unilateral cleft lip and palate group the CP group failed to demonstrate a shortening of the anterior height of the upper face or an elongation of the lower face. There was also no indication of a posterior displacement of the upper jaw, of a dentoalveolar retroinclination of the maxilla, or of an increase of the interocular distance. The observed shortening of both jaws in the CP group might be of importance in understanding the pathogenesis of isolated cleft palate. Unilateral cleft lip and palate was not associated with a reduction of the depth of the upper jaw, although the observed shortening of the lower jaw and of the posterior height of the upper face and the widening of the nasal cavity were similar to those seen in isolated cleft palate.