The assessment of acetabular index: Is there still a place for plain radiography?

Marinis Pirpiris, K. Rad Payman, Norman Y. Otsuka

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

This is a series of 7 children (14 hips) with a mean age of 7.3 years (range, 3.3-10.5 years) and an underlying diagnosis of developmental dysplasia of the hips and no previous open-hip surgery who underwent plain radiographic and magnetic resonance imaging (MRI) measures of bony acetabular index. There was a significant correlation between the measurement of acetabular index using plain radiography and MRI, with a Spearman correlation coefficient of 0.88 (95% confidence interval, 0.61-0.96; P < 0.001) and a mean difference between the 2 measures of 0.36 ± 6.5 degrees. Furthermore, the bony and cartilaginous acetabular indexes as measured by MRI had a significant correlation with a Spearman correlation coefficient of 0.88 (95% confidence interval, 0.80-0.98; P < 0.001). We suggest that plain radiography is still an appropriate tool for follow-up for the nonoperated hip with developmental dysplasia and may be a good indicator of hip cartilaginous development.

Original languageEnglish (US)
Pages (from-to)310-315
Number of pages6
JournalJournal of Pediatric Orthopaedics
Volume26
Issue number3
DOIs
StatePublished - May 1 2006

Keywords

  • Acetabular index
  • Developmental dysplasia of the hip
  • Hip development
  • Magnetic resonance imaging
  • Plain radiography

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Orthopedics and Sports Medicine

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