Anterior hip dislocations are relatively rare. They can be described based on clinical features.

Anatomic classification:

(1) obturator: anterior dislocation of the femoral head, going below the pubofemoral ligament to rest on the pubis or anterior to the obturator foramen

(2) iliac: anterosuperior dislocation of the femoral head, between the iliofemoral and pubofemoral ligaments


Complexity classification:

(1) simple: no accompanying fractures

(2) complex: fracture of femoral head or neck; acetabular fracture


Favorable prognostic factors:

(1) obturator dislocation (vs iliac)

(2) patient age at time of injury < 45 years

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