The lateral edge and sourcil acetabular indices for surgical decision-making in developmental dysplasia of the hip.
DDH
acetabular index
diagnosis
radiographic measurement
Journal
Journal of children's orthopaedics
ISSN: 1863-2521
Titre abrégé: J Child Orthop
Pays: England
ID NLM: 101313582
Informations de publication
Date de publication:
01 Dec 2020
01 Dec 2020
Historique:
entrez:
21
12
2020
pubmed:
22
12
2020
medline:
22
12
2020
Statut:
ppublish
Résumé
The acetabular index (AI) is a radiographic measure that guides surgical decision-making in developmental dysplasia of the hip (DDH). Two AI measurement methods are described; to the lateral edge of the acetabulum (AI-L) and to the lateral edge of the sourcil (AI-S). The purpose of this study was to determine the level of agreement between AI-L and AI-S on the diagnosis and degree of acetabular dysplasia in DDH. A total of 35 patients treated for DDH with Pavlik harness were identified. The AI-L and AI-S were measured on radiographs (70 hips) at two and five years of age. AI-L and AI-S were then transformed relative to published normative data (tAI-L and tAI-S). Bland-Altman plots, linear regression and heat mapping were used to evaluate the agreement between tAI-L and tAI-S. There was poor agreement between tAI-S and tAI-L on the Bland-Altman plots with wide limits of agreement and no proportional bias. The two AI measurements were in agreement as to the presence and severity of dysplasia in only 63% of hips at two years of age and 81% at five years of age, leaving the remaining hips classified as various combinations of normal, mildly and severely dysplastic. AI-L and AI-S have poor agreement on the presence or degree of acetabular dysplasia in DDH and cannot be used interchangeably. Clinicians are cautioned to prudently evaluate both measures of AI in surgical decision-making. I.
Identifiants
pubmed: 33343746
doi: 10.1302/1863-2548.14.200199
pii: jco-14-513
pmc: PMC7740684
doi:
Types de publication
Journal Article
Langues
eng
Pagination
513-520Informations de copyright
Copyright © 2020, The author(s).
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