Stahl classification of Kienböck disease

The Stahl classification of Kienböck disease, modified by Lichtman, is the most commonly used staging system and is useful in the treatment of Kienböck disease (avascular necrosis of the lunate).

This system divides the disease into four stages: 

  • stage I: normal radiograph
  • stage II: increased radiodensity of the lunate with possible decrease of lunate height on the radial side only
  • stage III
    • IIIa: lunate collapse, no scaphoid rotation
    • IIIb: lunate collapse, fixed scaphoid rotation
  • stage IV: degenerative changes around lunate
Share article

Article information

rID: 10222
Tag: avn, cases
Synonyms or Alternate Spellings:
  • Kienbock disease radiographic classification
  • Stahl classification of lunate AVN
  • Lunate AVN radiographic classification
  • Stahl classification

Support Radiopaedia and see fewer ads

Cases and figures

  • Ostenecrosis Luna...
    Case 1: Stage II
    Drag here to reorder.
  • Case 2: stage IIIa
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.