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Fig. 3 | BMC Pediatrics

Fig. 3

From: Magnetic resonance imaging follow-up can screen for soft tissue changes and evaluate the short-term prognosis of patients with developmental dysplasia of the hip after closed reduction

Fig. 3

Measurement of cartilaginous acetabular head index. Measurement of cartilaginous acetabular head index (CAHI) of the affected hip in a DDH patient after close reduction and spica casting: on the FS PDWI coronal image showing the maximal diameter of the femoral head, a vertical line was drawn from the innermost edge of the femoral head cartilage, the distance between the line and a line perpendicular to the outermost edge of the acetabular cartilage was measured, and another distance between the line and a line perpendicular to the outermost edge of the femoral head cartilage was also measured. The ratio of the two distances was the CAHI (2.15÷2.23 × 100 = 96.4)

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BMC Pediatrics

ISSN: 1471-2431

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