Spontaneous osteonecrosis of the knee

Case contributed by Dr Chris O'Donnell


6 months of knee pain, no trauma

Patient Data

Age: 40 years
Gender: Male

MRI knee

Geographical margined, alternating signal intensity subcortical lesion of the medial femoral condyle. 

Scan performed 6 months prior shows no abnormality in medial femoral condyle.

Case Discussion

Typical location and demographics for SONK (spontaneous osteonecrosis of the knee)

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Case information

rID: 16523
Published: 25th Jan 2012
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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