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Journal of Pediatric Orthopaedics B:
doi: 10.1097/BPB.0000000000000032
Hip & Femur

Evaluation of the cartilaginous acetabulum by magnetic resonance imaging in developmental dysplasia of the hip

Takeuchi, Ryokoa; Kamada, Hiroshib; Mishima, Hajimeb; Mukai, Naokic; Miyakawa, Shumpeic; Ochiai, Naoyukid

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Abstract

MRI findings for 51 hips in 45 pediatric patients (mean age 2.3 years; range, 1.1–4.1 years) with suspected acetabular dysplasia or residual subluxations were analyzed retrospectively. We attempted to predict the growth of osseous acetabulum and future acetabular coverage on MRI performed at 2 years of age. The cut-off value of the cartilaginous angle was 18° for the cartilage acetabular index and 13° for the cartilage center edge angle. However, follow-up assessments to monitor the progress of changes in the congruity between femoral head and acetabular development are important.

© 2014 by Lippincott Williams & Wilkins, Inc.

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