Radiograph of a dislocated hip. Image by Heather (The original uploader was Glitzy queen00 at English Wikipedia.), Wikimedia Commons, Public domain.
Classification
Thompson & Epstein
| Type | Description |
|---|
| I | with or without minor fracture |
|---|
| II | with fracture posterior acetabular rim |
|---|
| III | with comminution of acetabular rim |
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| IV | with fracture acetabular floor |
|---|
| V | with fracture of femoral head (subclassification by Pipkin) |
|---|
Thompson and Epstein Classification of Posterior Hip DislocationPipkin
| Type | Description |
|---|
| I | dislocation with femoral fracture caudal to fovea centralis |
|---|
| II | dislocation with femoral fracture cephalad to fovea centralis |
|---|
| III | Type I or II + fracture of femoral neck |
|---|
| IV | Type I or II + fracture of acetabulum |
|---|
Pipkin Classification of Posterior Hip DislocationReviewed by Professor Phong Tran, Head of Orthopaedic Surgery, Western Health. Last updated 10 October 2026.
