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Reliability of hip migration index in children with cerebral palsy: the classic and modified methods

Authors
 Sun Mi Kim ; Eun Geol Sim ; Eun Sook Park ; Seong Gyu Lim 
Citation
 Annals of Rehabilitation Medicine, Vol.36(1) : 33~38, 2012 
Journal Title
 Annals of Rehabilitation Medicine 
ISSN
 2234-0645 
Issue Date
2012
Abstract
OBJECTIVE: To determine reliability and clinical use of two methods of migration index (MI) in CP patients with or without hip dysplasia. METHOD: The materials included radiographs of 200 hips of children with cerebral palsy. Conventional anteroposterior radiographs of the pelvis were taken with the child in the supine position with standardized methods. Two rehabilitation doctors measured the migration index using two methods. In the classic method, the lateral margin of the acetabular roof was used as a landmark and in the modified method the lateral margin of the sourcil was used as a landmark. Each rater measured the migration index at three separate times with a time interval of at least one week. Intraclass correlation (ICC) was used to test the inter- and intra-rater reliability. RESULTS: MI shows excellent intra-rater reliability in both the classic and modified methods, but the inter-rater reliability was higher in the classic method than in the modified method. When categorized according to the sourcil classification, inter-rater reliability was higher in the normal sourcil type and lower in the dysplastic sourcil types. CONCLUSION: Generally, the classic method showed higher reliability than the modified method, even though the reliability of the MI measurement was relatively high with both methods. KEYWORDS: Cerebral palsy, Hip joint, Migration index, Radiography, Reliability
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/89534
DOI
10.5535/arm.2012.36.1.33
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Rehabilitation Medicine
Yonsei Authors
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