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Updated: May 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
Deficient language acquisition in children with single suture craniosynostosis and deformational posterior
Pirjo Korpilahti1, Pia Saarinen, Jyri Hukki
1Department of Behavioural Sciences and Philosophy, University of Turku, Turku, Finland. pirjo.korpilahti@utu.fi
Insights
Children with single suture craniosynostosis (SSC) face a higher risk of language impairments. Deformational posterior plagiocephaly also presents developmental risks for language skills in infants.
Area of Science:
- Pediatric neurology
- Developmental pediatrics
- Speech and language pathology
Background:
- Single suture craniosynostosis (SSC) involves premature fusion of cranial sutures.
- Deformational posterior plagiocephaly is a common head shape anomaly in infants.
- Early language development is a critical indicator of neurodevelopmental outcomes.
Purpose of the Study:
- To assess language acquisition at age 3 in children with SSC.
- To compare language development in SSC versus deformational posterior plagiocephaly.
- To identify potential risks for language impairment in these conditions.
Main Methods:
- Prospective evaluation of language skills in 61 infants at a mean age of 3 years 4 months.
- Study population included 20 sagittal SSC, 12 other SSC, and 29 deformational posterior plagiocephaly cases.
- Comparison between operated (n=49) and non-operated (n=12) deformational posterior plagiocephaly groups.
Main Results:
- 49% of subjects had normal linguistic development; 21% had severe speech-language disorders.
- The prevalence of severe language disorders was three times higher than in the general population.
- Children with sagittal SSC performed better than other SSC types; deformational posterior plagiocephaly showed language deficits in both operated and non-operated groups.
Conclusions:
- Nonsyndromic SSC presents a significant risk for specific language impairment, evident in early infancy.
- Deviant language development is a concern in infants with SSC.
- Contrary to prior beliefs, deformational posterior plagiocephaly carries a developmental risk for language deficits, regardless of surgical intervention.
Purpose:
This study examined early language acquisition in children with single suture craniosynostosis (SSC) and in children with deformational posterior plagiocephaly. Our purpose was to determine whether infants with SSC have normal language acquisition at the age of 3 years, and whether infants with deformational posterior plagiocephaly demonstrate parallel development when compared with children with SSC.
Methods:
The study population includes 61 infants. Twenty of them had synostosis of the sagittal suture, 12 synostosis of other suture and 29 deformational posterior plagiocephaly. Forty-nine of them were operated on a mean age of 10.6 months, and 12 were non-operated children with deformational posterior plagiocephaly. Language skills of participants were prospectively evaluated at the mean age of 3 years 4 months.
Results:
About one half of the subjects (49%) had normal linguistic development, 30% had slight developmental problems and 21% had severe disorders in speech-language-related skills. These figures showed the prevalence of severe language disorders to be three times higher in our study population when compared with the general population. Children with sagittal synostosis managed better in all language skills compared with other types of SSC. Defective language development was found in deformational posterior plagiocephaly, both operated and non-operated.
Conclusions:
We found a noticeable developmental risk for specific language impairment in children with nonsyndromic SSC, and that the deviant language development is observable already in early infancy. Contrary to previous beliefs, the developmental risk for defective language development in deformational posterior plagiocephaly was found in both operated and non-operated subjects.
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