Epstein classification anterior hip.
| Type | Subtype | Dislocation |
| 1—superior (pubic and subspinous) | A | No associated fracture |
| B | Associated fracture of the head | |
| C | Associated fracture of the acetabulum | |
| 2—inferior (obturator and perineal) | A | No associated fracture |
| B | Associated fracture of the head | |
| C | Associated fracture of the acetabulum |