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Trauma
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Hoffa Fractures - Coronal Plane Distal Femur Fractures

Distal Femur Fractures

A 35-year-old motorcyclist presents after a high-speed collision with direct trauma to his flexed knee against the dashboard. Examination reveals significant knee swelling and limited range of motion. AP radiograph appears near-normal but the lateral radiograph shows a coronal plane fracture of the lateral femoral condyle with posterior displacement. Regarding Hoffa fractures:

Mark each as TRUE or FALSE

A

A Hoffa fracture is a coronal plane (tangential) fracture of the femoral condyle first described by ...

B

The typical mechanism is axial loading on a flexed knee with the femoral condyle impacting the poste...

C

Hoffa fractures are easily diagnosed on AP radiographs which typically show the fracture line clearl...

D

On lateral radiograph, the Hoffa fracture appears as a line parallel to the posterior femoral cortex...

E

The Letenneur classification divides Hoffa fractures into three types based on fracture height: Type...

Answer the questions to see explanations

Click T (True) or F (False) for each option