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Functional status and amount of hip displacement independently affect acetabular dysplasia in cerebral palsy

Cited 15 time in Web of Science Cited 17 time in Scopus
Authors

Chung, Myung Ki; Zulkarnain, Arif; Lee, Jae Bong; Cho, Byung Chae; Chung, Chin Youb; Lee, Kyoung Min; Sung, Ki Hyuk; Park, Moon Seok

Issue Date
2017-07
Publisher
Mac Keith Press
Citation
Developmental Medicine and Child Neurology, Vol.59 No.7, pp.743-749
Abstract
AimAcetabular 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. MethodWe 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. ResultsA 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). InterpretationAcetabular 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.
ISSN
0012-1622
URI
https://hdl.handle.net/10371/191955
DOI
https://doi.org/10.1111/dmcn.13437
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  • College of Medicine
  • Department of Medicine
Research Area Cerebral palsy, Medical image, Motion analysis, Pediatric orthopedic surgery, Statistics in orthopedic research

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