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Congenital dislocation of the hip in infantile idiopathic scoliosis
Insights
Children with infantile idiopathic scoliosis have a significantly higher risk of congenital hip dislocation. This study found a 10-fold increased incidence, predominantly affecting girls and often associated with plagiocephaly.
Area of Science:
- Pediatric Orthopedics
- Developmental Biology
- Clinical Epidemiology
Background:
- Infantile idiopathic scoliosis is a common spinal deformity in young children.
- Congenital dislocation of the hip (CDH) is a significant developmental abnormality.
- The co-occurrence and potential links between these conditions require further investigation.
Purpose of the Study:
- To determine the incidence of CDH in a cohort of children diagnosed with infantile idiopathic scoliosis.
- To explore potential associations between infantile idiopathic scoliosis, CDH, and other developmental anomalies like plagiocephaly.
Main Methods:
- Retrospective analysis of 156 children diagnosed with infantile idiopathic scoliosis.
- Screening for congenital dislocation of the hip in the study cohort.
- Recording of associated conditions, including plagiocephaly and sex distribution.
Main Results:
- The incidence of CDH among children with infantile idiopathic scoliosis was 6.4%, approximately 10 times higher than in the general population.
- A female predominance was observed in both conditions (8:2 female to male ratio).
- Unilateral CDH correlated with the direction of thoracic scoliosis convexity; 80% of affected children also had plagiocephaly.
Conclusions:
- Infantile idiopathic scoliosis is a significant risk factor for congenital hip dislocation.
- The findings suggest a potential common etiology or developmental pathway for these conditions.
- Associated plagiocephaly warrants consideration in the clinical evaluation of children with both scoliosis and hip dislocation.
Abstract:
The incidence of congenital dislocation of the hip in 156 children with infantile idiopathic scoliosis was 6.4 per cent, approximately 10 times its frequency in the general population. In both of these deformities there was a predominance of girls (eight girls: two boys). In unilateral dislocation of the hip the convexity of the thoracic scoliosis was on the same side as the dislocation. Eight out of the 10 children with both deformities also had plagiocephaly.