Test 1

  • Michael Paddock
  • Amaka C. Offiah


The cause was idiopathic in this case and is more commonly known as Perthes (or Legg-Calvé-Perthes) disease, the eponymous name for idiopathic avascular necrosis of the proximal femoral epiphysis. In the examination, it would be more accurate to write ‘avascular necrosis right proximal femoral epiphysis’ rather than ‘Perthes disease’ because you will not know the underlying aetiology in the absence of clinical history. Perthes disease is five times more common in males with a peak incidence of around 6 years of age; it can affect children from as young as 2 years to those aged 14 years. The majority of children present with a painful hip or limp in the absence of trauma. It is a diagnosis of exclusion and other causes should be excluded first (above).


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Further Reading

Image 1

  1. Bell DJ, Gaillard F et al (2018a) Avascular necrosis causes (mnemonic). Accessed April 2018
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Image 4

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Image 7

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Image 10

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Image 19

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Malrotation and Midgut Volvulus

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Image 21

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Image 29

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Michael Paddock
    • 1
  • Amaka C. Offiah
    • 2
  1. 1.Sheffield Teaching HospitalsSheffieldUK
  2. 2.Academic Unit of Child Health, Department of Oncology and MetabolismUniversity of SheffieldSheffieldUK

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