Which population is most commonly affected by Legg-Calve-Perthes Disease?

Legg-Calve-Perthes Disease is most commonly observed in children aged 3 to 12 years. This condition involves avascular necrosis of the femoral head due to interrupted blood supply, primarily affecting the hip joint. The disease typically presents in this age group, with a peak incidence around 4 to 8 years of age.

Children within this age range are in a period of rapid growth and development, where skeletal changes and blood flow dynamics are undergoing significant changes. The condition is more prevalent in boys than girls and is often idiopathic, meaning the exact cause is not well understood. Overall, the age range of 3-12 years aligns with the demographic most likely to present with symptoms of Legg-Calve-Perthes Disease, such as hip pain, limping, and limited range of motion.

The other options do not accurately reflect the most commonly affected population. Females aged 10-15, while not outside of the potential age range, are less commonly diagnosed with this disease compared to younger children. Obesity in teenagers is unrelated to the development of Legg-Calve-Perthes Disease, as the condition primarily affects younger children. Lastly, infants under 2 years are also not typically affected