Legg-Calvé-Perthes disease is most common in which age group and sex?
- A 12-16 years, boys more than girls
- B 8-12 years, equal sex distribution
- C 4-8 years, boys more than girls ✓
- D 2-4 years, girls more than boys
Correct answer: C. 4-8 years, boys more than girls
Explanation
Perthes disease has a peak incidence at 4-8 years of age with a male-to-female ratio of approximately 4-5:1. Bilateral involvement occurs in about 10-15% of cases, usually metachronous. The disease is rare before age 2 and after age 14. The classic presentation is a limping child with referred knee pain.
Reference: Rockwood and Wilkins' Fractures in Children, 9th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.