Classification
Kyle
| Type | Stability | Description |
|---|---|---|
| I | Stable | 2-part, no comminution |
| II | 3-part, minimal comminution | |
| III | Unstable | 4-part, large posteromedial comminuted area |
| IV | subtrochanteric extension, highly unstable |
Evan’s
- Most useful
- Two types depending on direction of major fracture line
- Type 1 Extends superolaterally from LT
- Undisplaced : stable
- Displaced reduced : stable with medial cortex apposition
- Displaced unreduced : unstable with no medial apposition
- Comminuted : unstable with no medial apposition
- Type 2 Extends inferolaterally from LT
- Femoral shaft medially displaced by adductors : unstable
- Timing (McNeill)
- 10x ↑ in mortality if operation delayed >48 hrs