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Inter- and intra-rater reliability of the head-shaft angle in children with cerebral palsy

Hermanson, M. LU ; Hägglund, G. LU ; Riad, J and Rodby-Bousquet, E. LU (2017) In Journal of Children's Orthopaedics 11(4). p.256-262
Abstract

Purpose. Children with cerebral palsy (CP) are at increased risk for hip dislocation. This can be prevented in most cases using surveillance programmes that include radiographic examinations. Known risk factors for hip dislocation include young age, high Gross Motor Function Classification System (GMFCS) level and high migration percentage (MP). The head-shaft angle (HSA) has recently been described as an additional risk factor. The study aim was to determine inter- and intra-rater reliability of the HSA in a surveillance programme for children with CP. Methods. We included hip radiographs from the CP surveillance programme CPUP in southern Sweden during the first half of 2016. Fifty radiographs were included from children at GMFCS... (More)

Purpose. Children with cerebral palsy (CP) are at increased risk for hip dislocation. This can be prevented in most cases using surveillance programmes that include radiographic examinations. Known risk factors for hip dislocation include young age, high Gross Motor Function Classification System (GMFCS) level and high migration percentage (MP). The head-shaft angle (HSA) has recently been described as an additional risk factor. The study aim was to determine inter- and intra-rater reliability of the HSA in a surveillance programme for children with CP. Methods. We included hip radiographs from the CP surveillance programme CPUP in southern Sweden during the first half of 2016. Fifty radiographs were included from children at GMFCS levels II-V, with a mean age of 6.6 (SD 3.2) years. Three raters measured the HSA of one hip (left or right) at baseline and four weeks later; intraclass correlation coefficient (ICC) was used to estimate interand intra-rater reliability. Results. Interand intra-rater reliability were excellent for the HSA, with ICC 0.92 (95% CI 0.87-0.96) and ICC 0.99 (95% CI 0.98-0.99), respectively. Conclusion. The HSA showed excellent interand intra-rater reliability for children with CP, providing further evidence for use of the HSA as an additional factor for identifying risk for further hip displacement or dislocation.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cerebral palsy, CPUP, CPUP hip score, Head-shaft angle, Hip, Hip displacement, Reliability
in
Journal of Children's Orthopaedics
volume
11
issue
4
pages
7 pages
publisher
Springer
external identifiers
  • scopus:85026816285
  • wos:000407227600003
ISSN
1863-2521
DOI
10.1302/1863-2548.11.170008
language
English
LU publication?
yes
id
49ec2b85-19f4-4f39-aab8-b8e28b178e03
date added to LUP
2017-08-31 13:25:43
date last changed
2018-04-15 04:46:51
@article{49ec2b85-19f4-4f39-aab8-b8e28b178e03,
  abstract     = {<p>Purpose. Children with cerebral palsy (CP) are at increased risk for hip dislocation. This can be prevented in most cases using surveillance programmes that include radiographic examinations. Known risk factors for hip dislocation include young age, high Gross Motor Function Classification System (GMFCS) level and high migration percentage (MP). The head-shaft angle (HSA) has recently been described as an additional risk factor. The study aim was to determine inter- and intra-rater reliability of the HSA in a surveillance programme for children with CP. Methods. We included hip radiographs from the CP surveillance programme CPUP in southern Sweden during the first half of 2016. Fifty radiographs were included from children at GMFCS levels II-V, with a mean age of 6.6 (SD 3.2) years. Three raters measured the HSA of one hip (left or right) at baseline and four weeks later; intraclass correlation coefficient (ICC) was used to estimate interand intra-rater reliability. Results. Interand intra-rater reliability were excellent for the HSA, with ICC 0.92 (95% CI 0.87-0.96) and ICC 0.99 (95% CI 0.98-0.99), respectively. Conclusion. The HSA showed excellent interand intra-rater reliability for children with CP, providing further evidence for use of the HSA as an additional factor for identifying risk for further hip displacement or dislocation.</p>},
  author       = {Hermanson, M. and Hägglund, G. and Riad, J and Rodby-Bousquet, E.},
  issn         = {1863-2521},
  keyword      = {Cerebral palsy,CPUP,CPUP hip score,Head-shaft angle,Hip,Hip displacement,Reliability},
  language     = {eng},
  number       = {4},
  pages        = {256--262},
  publisher    = {Springer},
  series       = {Journal of Children's Orthopaedics},
  title        = {Inter- and intra-rater reliability of the head-shaft angle in children with cerebral palsy},
  url          = {http://dx.doi.org/10.1302/1863-2548.11.170008},
  volume       = {11},
  year         = {2017},
}