Validity and reliability of radiological methods to assess proximal hip geometry in children with cerebral palsy: a systematic review
Article first published online: 4 JUN 2013
© 2013 Mac Keith Press
Developmental Medicine & Child Neurology
Volume 55, Issue 12, pages 1089–1102, December 2013
How to Cite
Pons, C., Rémy-Néris, O., Médée, B. and Brochard, S. (2013), Validity and reliability of radiological methods to assess proximal hip geometry in children with cerebral palsy: a systematic review. Developmental Medicine & Child Neurology, 55: 1089–1102. doi: 10.1111/dmcn.12169
- Issue published online: 12 NOV 2013
- Article first published online: 4 JUN 2013
- Manuscript Accepted: 19 MAR 2013
The aim of this systematic review was to assess the current validity and reliability of radiological methods used to measure proximal hip geometry in children with cerebral palsy.
A search was conducted using relevant keywords and inclusion/exclusion criteria of the MEDLINE, CINALH Plus, Embase, Web of Science, Academic Search Premier, The Cochrane Library, and PsychINFO databases.
The migration percentage using X-rays showed excellent reliability and concurrent validity with three-dimensional (3D) measurements from computed tomography (CT) scans. The acetabular index, measured using X-rays had good reliability but moderate concurrent validity with 3D CT measurements; 3D CT scan indexes had greater reliability. The measurement of the neck shaft angle using X-rays showed excellent concurrent validity with measurements from 3D CT scans and excellent reliability. Regarding femoral anteversion, one study found an excellent correlation between two-dimensional CT and clinical assessment and excellent reliability. Two others showed less evidence for the use of CT ultrasounds.
Most of the X-ray-based measurements showed good to excellent metrological properties. More metrological evidence is needed for the assessment of femoral anteversion. Magnetic resonance imaging and ultrasound-based measurements have great potential although very little metrological evidence is available.