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Paediatrics
intermediate
X-Type

Perthes Disease Classification Treatment

Paediatric Hip

A 6-year-old boy presents with a painless limp and intermittent thigh pain for 3 months. He has limited hip abduction and internal rotation on examination. Radiographs show increased density of the left femoral head with subchondral fracture (crescent sign). There is involvement of the lateral pillar without collapse. His bone age is slightly delayed compared to chronological age. Regarding Legg-Calvé-Perthes disease:

Mark each as TRUE or FALSE

A

Legg-Calvé-Perthes disease is idiopathic avascular necrosis of the femoral head occurring in childre...

B

The disease progresses through four stages: initial/necrosis (increased density, crescent sign), fra...

C

Perthes disease is more common in girls; bilateral involvement occurs in 50% of cases; older age at ...

D

The Herring lateral pillar classification (assessed during fragmentation) predicts outcome: Group A ...

E

Treatment principles involve maintaining containment of the femoral head within the acetabulum durin...

Answer the questions to see explanations

Click T (True) or F (False) for each option