University of Oulu

Valkama, A.M.; Aarnivala, H.I.; Sato, K.; Harila, V.; Heikkinen, T.; Pirttiniemi, P. Plagiocephaly after Neonatal Developmental Dysplasia of the Hip at School Age. J. Clin. Med. 2020, 9, 21.

Plagiocephaly after neonatal developmental dysplasia of the hip at school age

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Author: Valkama, A Marita1,2,3; Aarnivala, Henri I1,2,3; Sato, Koshi3,4;
Organizations: 1Department of Children and Adolescents, Oulu University Hospital, 90029 Oulu, Finland
2PEDEGO Research Center, University of Oulu, 90014 Oulu, Finland
3Medical Research Center Oulu, University of Oulu, 90014 Oulu, Finland
4Department of Oral Development and Orthodontics, Oulu University Hospital, 90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.2 MB)
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Language: English
Published: Multidisciplinary Digital Publishing Institute, 2020
Publish Date: 2020-04-29


Developmental dysplasia of the hip (DDH) may require early abduction treatment with infants sleeping on their back for the first few months of life. As sleeping on back is known to cause deformational plagiocephaly, we assessed school age children treated for dislocation or subluxation of the hip-joint in infancy. Plagiocephaly was analyzed by using cephalic index (CI) and oblique cranial length ratio (OCLR) as anthropometric measurements from 2D digital vertex view photographs. Six of the 58 (10.3%) DDH children and only one of the 62 (1.6%) control children had plagiocephaly (p = 0.041). Furthermore, cross bite was found in 14 (24.1%) of the DDH children and in 7 (10.3%) of the control children. Developmental dysplasia of the hip in infancy was associated with cranial asymmetries and malocclusions at school age. Preventive measures should be implemented. View Full-Text

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Series: Journal of clinical medicine
ISSN: 2077-0383
ISSN-E: 2077-0383
ISSN-L: 2077-0383
Volume: 9
Issue: 1
Article number: 21
DOI: 10.3390/jcm9010021
Type of Publication: A1 Journal article – refereed
Field of Science: 313 Dentistry
3123 Gynaecology and paediatrics
Copyright information: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (