Spontaneous osteonecrosis of the knee

Case contributed by Dr Natalie Yang

Patient Data

Age: 65
Gender: Male

Spontaneous osteonecrosis of the knee (SONK) of the lateral aspect of the medial condyle (most common location). Incidental bakers cyst.

Case Discussion

Spontaneous osteonecrosis of the knee (SONK) involving the weightbearing portion of the medial femoral condyle, with associated articular surface impacttion fracture.  Maceration and degenerative tears of the body and posterior horn of the medial meniscus is associated with meniscal extrusion and osteophytic lipping.

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Case information

rID: 7184
Published: 14th Sep 2009
Last edited: 6th Sep 2015
Tag: knee
Inclusion in quiz mode: Included

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