Proximal tibia stress fracture

Case contributed by Bruno Di Muzio
Diagnosis certain

Presentation

Pain in the left knee.

Patient Data

Age: 40 years
Gender: Female

Knee radiographs

x-ray

Transverse fracture line through the proximal tibia. 

CT Knee

ct

There is a transverse fracture line at the lateral aspect of the proximal tibial diaphysis, incomplete, surrounded by faint marrow hyperdensity, and showing new periosteal bone formation. No other fractures are seen, bone alignment is preserved. Mild joint knee degenerative changes are noted. No abnormal amount of joint effusion. 

MRI Knee

mri

Transverse stress fracture of a low signal intensity of the proximal tibia with surrounding bone marrow edema of high signal.

Case Discussion

The imaging features are those of a subacute stress fracture of the proximal tibia. 

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