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Updated: Jun 19, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
Three-dimensional assessment of facial development in children with Pierre Robin sequence
Michael Krimmel1, Susanne Kluba, Martin Breidt
1Department of Oral and Maxillofacial Surgery, University of Tübingen, Germany. Michael.Krimmel@med.uni-tuebingen.de
Insights
Children with Pierre Robin sequence (PRS) show normal facial growth vertically and transversally. However, a persistent midface sagittal deficit, not catch-up mandibular growth, characterizes their development, requiring early intervention.
Area of Science:
- Craniofacial development
- Pediatric genetics
- Medical imaging
Background:
- Pierre Robin sequence (PRS) is characterized by mandibular hypoplasia, glossoptosis, and potential cleft palate.
- Facial development patterns in PRS patients are not fully understood and remain controversial.
- Early identification and intervention are crucial for managing PRS-related craniofacial abnormalities.
Purpose of the Study:
- To analyze and compare the facial development of children with PRS against healthy controls.
- To investigate the sagittal, transversal, and vertical growth patterns in PRS patients.
- To evaluate the theory of mandibular catch-up growth in children with PRS.
Main Methods:
- Prospective, cross-sectional study involving 3D scans of 37 children with PRS and 344 healthy children under 8 years.
- Identification of 21 standard anthropometric landmarks and image superimposition.
- Calculation of normal facial growth curves and comparison of PRS facial morphology.
Main Results:
- Facial growth in the transversal and vertical planes was normal for children with PRS.
- A significant and persistent sagittal deficit was confirmed in the midface, excluding orbital landmarks and nasion.
- The study did not support the theory of mandibular catch-up growth in PRS patients.
Conclusions:
- Children with PRS exhibit early-onset, severe, and persistent midface underdevelopment.
- The observed sagittal deficit remains constant across all studied ages.
- Early orthodontic and speech therapy are recommended for addressing craniofacial disturbances in PRS.
Abstract:
Newborns with Pierre Robin sequence (PRS) have mandibular hypoplasia, glossoptosis, and possibly cleft palate. Their facial appearance is characteristic. The further facial development is controversial. The aim of this study was to analyze the facial development of children with PRS.In a prospective, cross-sectional study, 344 healthy children and 37 children with PRS and cleft palate younger than 8 years were scanned three-dimensionally. Twenty-one standard anthropometric landmarks were identified, and the images were superimposed. Growth curves for normal facial development were calculated. The facial morphology of children with PRS was compared with that of healthy children.The facial growth of children with PRS in the transversal and vertical direction was normal. In the sagittal direction, the mandibular deficit was confirmed. Except for the orbital landmarks and nasion, all landmarks of the midface demonstrated a significant sagittal deficit. This difference to healthy children remained constant for all ages.Our study cannot support the theory of mandibular catch-up growth. The sagittal deficit of the midface could be observed in all ages. This indicates that children with PRS have a very early, severe, and persistent underdevelopment of this part of the face. We conclude that this disturbance must be addressed in early childhood with orthodontic and speech therapy.
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