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Updated: Apr 27, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
Cranial shape, size and cervical motion in normal newborns.
Henri E I Aarnivala1, A Marita Valkama2, Pertti M Pirttiniemi3
1Department of Pediatrics and Adolescence, Oulu University Hospital, Oulu, Finland; University of Oulu, Oulu, Finland.
Deformational plagiocephaly (DP) and torticollis are common in newborns. Cranial shape, not asymmetry, is linked to cervical motion at birth, suggesting conditions develop postnatally.
Area of Science:
- Neonatal health
- Pediatric physical therapy
- Craniofacial development
Background:
- Deformational plagiocephaly (DP) and torticollis are frequently observed in infants, often co-occurring.
- Limited data exists on their prevalence and relationship in the immediate newborn period.
- No prior studies have investigated the link between cranial shape and cervical motion in neonates.
Purpose of the Study:
- To determine the incidence rates and characteristics of DP and torticollis in neonates.
- To examine the relationship between cervical range of motion (ROM), cranial size, and cranial shape in newborns.
- To investigate potential associations between neonatal cranial morphology and cervical function.
Main Methods:
- A descriptive cross-sectional study of 155 healthy neonates during birth hospitalization.
- Measurement of Oblique Cranial Length Ratio (OCLR) and Cephalic Index (CI) using computer-based cephalometry from digital photographs.
- Assessment of cervical range of motion (ROM) using goniometry.
Main Results:
- Incidence rates: 7.7% for DP, 3.9% for torticollis, and 46.4% for minor cervical imbalances.
- DP associated with gestational diabetes and vacuum-assisted delivery; no association with torticollis.
- Cephalic Index (CI) strongly correlated with cervical ROM; cranial asymmetry showed no clear association with cervical motion.
Conclusions:
- DP and torticollis are common in newborns, with minor cervical imbalances also prevalent.
- Findings suggest DP and torticollis typically develop postnatally rather than being congenital.
- While direct association between DP and torticollis was not found, cranial shape is linked to cervical motion at birth.
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