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Hoffa fracture

A Hoffa fracture is a type of supracondylar distal femoral fractures and is chatacterised by an associated coronal plane.

Epidemiology

While they are rare in absolute numbers, they can account for approximately 40 % of intercondylar fractures. It is typically seen in adults after higher-energy trauma 4.

Pathology

Hoffa fractures are intra-articular and are characterised by a fracture in the coronal plane. 

Location / distribution

Hoffa fragments are more commonly unicondylar and usually originate from the lateral femoral condyle. They can be occasionally bicondylar.

Radiographic features

Plain film

Initially imaging evaluation of Hoffa fractures (as with other distal femoral fractures) is usually with conventional radiographs. The fracture line in the coronal plane is classically shown.

CT

Pre oprative CT evaluation is considered to be useful particualrly to assess the fracture pattern 1.

Treatment and prognosis

At the time of writing, they are thought to be best treated by anatomical reduction and rigid fixation followed by early mobilisation 2.

Etymology

It was initially described by Hoffa in 1904.

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