Avascular necrosis

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[edit] Discussion

[edit] PLASTIC (Mnemonic for etiologies of AVN)

[edit] FICAT Classification

  • Stage I: Radiographs are normal (MRI or radionuclide imaging findings will confirm AVN).
  • Stage II: Cystic and sclerotic changes are seen on radiographs.
  • Stage III: Crescent sign is present.
  • Stage IV: Flattening of the femoral head, narrowing of the hip joint, and, ultimately, severe joint destruction.

[edit] Imaging Findings

[edit] MRI

[edit] Images

Patient #1

Patient #2: MR images demonstrate shoulder AVN

[edit] See Also

[edit] External Links

[edit] References