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The epidemiology of Perthes' disease in south India
1Department of Orthopaedics, Kasturba Medical College, Karnataka, South India.
Insights
Perthes
Area of Science:
- Pediatric Orthopedics
- Epidemiology
Background:
- Perthes' disease is a hip condition affecting children.
- Geographical variations in incidence are not well-documented.
Purpose of the Study:
- To estimate the incidence and prevalence of Perthes' disease in South India.
- To identify geographical variations and demographic factors associated with the disease.
Main Methods:
- Conducted hospital, incidence, and prevalence surveys in South India.
- Analyzed data to determine disease rates and characteristics.
Main Results:
- Minimum incidence of Perthes' disease was 4.4 per 100,000 children (aged 5-14).
- Prevalence suggested incidence could be as high as 14.8 per 100,000 children.
- Higher incidence observed in the western coastal region, with later age of onset and rural predominance compared to England.
Conclusions:
- Perthes' disease shows significant geographical variation in South India, particularly in the western coastal region.
- The disease presents with later onset and a rural predilection in this population compared to previous reports.
Abstract:
The incidence of Perthes' disease in parts of south India was estimated by means of a hospital survey, an incidence study and a prevalence survey. Based on the incidence study it was noted that the minimum incidence of Perthes' disease in Udupi Taluk on the western coastal plain of south India was 4.4 per 100,000 children aged 5 to 14 years, while the prevalence survey suggested that the incidence may be as high as 14.8 per 100,000 children. The studies showed that there is a marked geographical variation in the incidence of Perthes' disease in south India, the disease being much more common in the western coastal region than elsewhere. The age of onset of the disease was significantly higher than that reported from England and the disease appeared to be rural rather than urban.