Article

We aimed to evaluate the bone mineral density of the hip joint in patients
with cerebral palsy (CP). METHOD: Patients with CP younger than 18 years who
underwent three-dimensional hip examination by computed tomography were analysed.
Bone attenuation of the acetabulum and femur was measured as Hounsfield units
(HU), and was adjusted for affecting factors such as hip instability and Gross
Motor Function Classification System (GMFCS). RESULTS: One hundred and twenty-six
patients with CP and 86 typically developing participants were included. The
average bone attenuation was significantly lower in those with CP than in the
comparison group (acetabulum: 70.8HU, 95% confidence interval [95% CI] 59.9-81.8;
femur: 82.2HU, 95% CI 70.4-95.8). Compared with GMFCS levels I to III, bone
attenuation was significantly lower for GMFCS levels IV (acetabulum: 30.9HU, 95%
CI 15.7-46.2; femur: 39.7HU, 95% CI 19.9-59.5) and V (acetabulum: 51.7HU, 95% CI
35.9-67.5; femur: 72.5HU,
95% CI 51.9-93.0).
The average bone attenuation
decreased when the migration percentage was over 37% (acetabulum: 11.6HU, 95% CI
1.4-24.6; femur: 26.8HU, 95% CI 9.9-43.6). INTERPRETATION: Bone attenuation of
the acetabulum and femur was significantly affected both by GMFCS level and by
severity of hip instability.
CI - (c) 2016 Mac Keith Press.

Langue : ANGLAIS