Quantitative analysis of hip dysplasia in cerebral palsy: a study of radiographs and 3-D reformatted images.
cross_sectional · Level IV
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Abstract
Cerebral palsy patients (31 hips) were evaluated using radiographic and three-dimensional (3-D) images to quantify hip anatomy. The 3-D images overcome distortions caused by joint contractures. Changes were more pronounced in the non-ambulators and characterized by shallow sockets with increased neck-shaft angles. These hips tended to subluxate in a posterior-superior direction and most had defects in the femoral heads. Ambulators had increased femoral anterversion but other hip parameters tended to improve with age. The 3-D measures of roof steepness and socket depth were found to correlate strongly with radiographic parameters of subluxation.
Medical subject headings
- Cerebral Palsy
- Hip Dislocation
Anatomy
- hip
- femur