The purpose of this study was to analyse inter- and intra-rater reliability of the Head-Shaft angle (HSA) on radiographs from a surveillance programme for children with cerebral palsy (CP). A high HSA is a risk factor for hip displacement in children with CP. To evaluate inter- and intra-rater reliability of the HSA, hip radiographs from the CP surveillance programme CPUP in the southern part of Sweden during the first half of 2016 were included in this study.Purpose
Method
This study re-examined the influence of the head shaft angle (HSA) on hip dislocation in a large cohort of children with cerebral palsy (CP). The radiographs of GMFCS Level III – V children from a surveillance programme database were analysed and migration percentage (MP) and HSA measured. The first radiograph of each patient was taken to remove the effect of the surveillance programme. The most displaced hip in each child, by MP, was used for analysis and the corresponding HSA measured. Hip displacement was defined as MP >
40%
and logistic regression was used to adjust for HSA, GMFCS, age and sex.Purpose
Method
