Article

Acetabular dysplasia is the one of main causes of hip displacement in
patients with cerebral palsy (CP). Although several studies have shown a
relationship between hip displacement and acetabular dysplasia, relatively few
have evaluated the association between quantitative acetabular dysplasia and
related factors, such as Gross Motor Function Classification System (GMFCS)
level. METHOD: We performed a morphometric analysis of the acetabulum in patients
with CP using multiplanar reformation of computed tomography data. The three
directional acetabular indices (anterosuperior, superolateral, and posterosuperior) were used to evaluate acetabular dysplasia. Consequently, linear
mixed-effects models were used to adjust for related factors such as age, sex,
GMFCS level, and migration percentage. RESULTS:
A total of 176 patients (mean age
9y 5mo, range 2y 4mo-19y 6mo; 104 males, 72 females) with CP and 55 typically
developing individuals (mean age 13y 6mo, range 2y 5mo-19y 10mo; 37 males, 18
females) in a comparison group were enrolled in this study. Statistical modelling
showed that all three directional acetabular indices independently increased with GMFCS level
(p<0.001) and migration percentage (p<0.001). INTERPRETATION:
Acetabular dysplasia was independently affected by both the amount of hip
displacement and the GMFCS level. Thus, physicians should consider not only the
migration percentage but also three-dimensional evaluation in patients at high
GMFCS levels.
CI - (c) 2017 Mac Keith Press.

Langue : ANGLAIS