Posterior hip dislocation

Case contributed by Leonardo Lustosa

Presentation

Motorcycle accident, frontal collision. Shortened and internally rotated thigh upon inspection.

Patient Data

Age: 20 years
Gender: Male

Radiographs revealed a dislocation of the left hip. The femoral head is seen superior and lateral to the acetabulum and overlaps the acetabular roof, this is the typical appearance of posterior hip dislocation.

There are no associated fractures.

Case Discussion

Posterior hip dislocation is the commonest type of hip dislocation.

Usually, an extremely high-energy trauma is necessary to dislocate the hip.

The present case is an example of pure hip dislocation, as there are no associated fractures of neither the femoral head nor the acetabulum.

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