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Hips with developmental dysplasia and avascular necrosis according to patient age and ossific nucleus status
| Age (months) | ON+ (n = 84; 35.9 %) | ON− (n =150; 64.1 %) | ||
|---|---|---|---|---|
| AVN+ | AVN− | AVN+ | AVN− | |
| 1–10 | 3 (3.6 %) | 66 (78.6 %) | 4 (2.7 %) | 146 (97.3 %) |
| 10–18 | 9 (10.7 %) | 6 (7.2 %) | 0 | 0 |
AVN avascular necrosis, ON ossific nucleus
