Back to A-Z


Spontaneous osteonecrosis of the knee (SONK)

SONK is an idiopathic form of ON that affects primarily women (female:male = 3:1) over the age of 50 years. Patients present with knee pain. Magnetic resonance imaging (MRI) shows lesions that tend to be small on the medial more often than the lateral femoral condyle.


Pubmed

UpToDate

Images


Video


Web:

Radiopaedia

Medscape

OrthoInfo