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What is Commonest age of Perthes disease is: and explain in detail?
(5 - 10 years): Ref: 269-M, 422-APERTHES' DISEASE: (Coxa plana, Pseudocoxalgia) A painful disorder of childhood characterized by avascular necrosis of the femoral head.* The disease commonly in boys in age groups of 5 - 10 years* Limping or stiffness* Limitation of abduction and internal rotation and shortening* Age is the most important prognostic factorGuidelines of Treatment1. Children under 6 years of age - Symptomatic treatment including a period of traction and there after reduced activity, is appropriate2. Children aged 6-8 years - In this the bone age is more important than the chronological age(I) Bone age at or below 6 years - Symptomatic treatment abduction brace(II) Bone age over 6 years - Abduction brace or osteotomy3. Children 9 years and older - Operative containment is the treatment of choice