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Comparison of percentage change of femoral head morphology of Legg-Calvé-Perthes disease hips in early-stage versus late-stage versus contra-ateral unaffected hips.
| Demographics | % change on standing (mean or median) | |||
|---|---|---|---|---|
| Stage of LCPD | Age range, years | Femoral head width | Femoral head height | Lateral extrusion |
| Unaffected hips | 4 to 8 | - 0.2 | - 0.05 | + 0.1 |
| Early-stage | 4 to 8 | + 7.2 | - 12.4 | + 23.0 |
| Late-stage | 4 to 6 | - 0.4 | - 13.8 | + 6.5 |
