Femoral head fractures are very rarefractures of the upper end (femoral head) of the thigh bone (femur). They are a very rare kind ofhip fracture that may be the result of a fall like most hip fractures but are more commonly caused by more violent incidents such as traffic accidents They are categorized according to the Pipkin classification based on the followingbone fracture patterns:[1]
| Pipkin classification type | Description |
|---|---|
| I | Fracture below thefovea; not involving weight-bearing surface of the head |
| II | Fracture above thefovea; involving weight-bearing surface of the head |
| III | Type I or II fracture with associatedfemoral neck fracture |
| IV | Type I or II fracture with associatedacetabulum fracture |
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