Clinical assessment of head orientation profile development and its relationship with positional plagiocephaly in healthy term infants - a prospective study

Leung, Amy Y. F., Mandrusiak, Allison, Watter, Pauline, Gavranich, John and Johnston, Leanne M. (2016) Clinical assessment of head orientation profile development and its relationship with positional plagiocephaly in healthy term infants - a prospective study. Early Human Development, 96 31-38. doi:10.1016/j.earlhumdev.2016.03.001


Author Leung, Amy Y. F.
Mandrusiak, Allison
Watter, Pauline
Gavranich, John
Johnston, Leanne M.
Title Clinical assessment of head orientation profile development and its relationship with positional plagiocephaly in healthy term infants - a prospective study
Journal name Early Human Development   Check publisher's open access policy
ISSN 1872-6232
0378-3782
Publication date 2016-05-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.earlhumdev.2016.03.001
Open Access Status Not Open Access
Volume 96
Start page 31
End page 38
Total pages 8
Place of publication Shannon, Clare Ireland
Publisher Elsevier Ireland
Collection year 2017
Language eng
Formatted abstract
Background: Positional plagiocephaly refers to atypical development of an uneven head shape with asymmetrical head orientation as a post-natal risk factor. The development of the head orientation profile and its relationship with positional plagiocephaly are lacking.

Objectives: To explore the head orientation profile development and its relationship with positional plagiocephaly in healthy full term infants.

Methods: A prospective observational study including 94 infants was conducted. Head orientation measures including head orientation duration, head orientation strength and latency to turn were conducted at three, six and nine weeks of age. Plagiocephaly outcome was measured by modified Cranial Vault Asymmetry Index at nine weeks.

Results: Lateral head orientation duration predominated at three weeks, mean (standard deviation) (right = 40 [21.7]%; left = 41 [21.5]%; midline = 19 [19.9]%). It decreased bilaterally in favour of midline positioning at nine weeks (right = 30 [22.3]%; left = 24 [22.0]%; midline = 46 [27]%. Although head orientation strength was similar across the three ages after accounting for side, head orientation strength to left was decreased from three to nine weeks (p = 0.031; 95% CI: 0.12-2.06). There was a reduction in left-consistent with increase in left-bias from 3 weeks to 6 weeks of age (p = 0.011). Positional plagiocephaly at nine weeks was associated with head orientation duration-right (p < 0.001; r2 = 0.20); head orientation duration-left (p < 0.001; r2 = 0.17); head orientation strength at three and six weeks (p < 0.001; r2 = 0.22), but not latency to turn.

Conclusions: Healthy infants show progressive change from symmetrical lateral head orientation to midline orientation from three to nine weeks. There is association of head orientation duration and strength with positional plagiocephaly.
Keyword Assessment
Community
Head orientation profile
Infant
Modified Cranial Vault Asymmetry Index
Positional plagiocephaly
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Health and Rehabilitation Sciences Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 12 Apr 2016, 00:17:30 EST by System User on behalf of Learning and Research Services (UQ Library)