Legg Calve Perthes Disease Definition Most common 4 – 8 years of ageMale: female 4-5: 1Bilateral in 10-12%No evidence that it is inheritedChildren are often small for their ageHas been associated with ADD Western Health Orthopaedic Registrar presentation – Legg-Calve Perthes Disease by Dr David Slattery Presentation by Dr Praveen Kumar