| Type |
Displacement |
Distal Fragment Tilt (Extension Type) |
| Ⅰa |
No displacement |
Posterior tilt < 5° |
| Ⅰb |
No displacement |
Posterior tilt ≤ 15-20°, medial (lateral) gap ≤ 1mm |
| Ⅱa |
Displacement 0-2mm |
Posterior tilt ≤ 15-20°, or medial (lateral) cortical compression or fracture gap > 1mm |
| Ⅱb |
Displacement 2-15mm, ends in contact |
Various degrees of tilt |
| Ⅲa |
No contact between ends, overlap ≤ 20mm or rotational displacement > 15mm, ends still in contact |
Various degrees of tilt |
| Ⅲb |
Large gap between ends or overlap > 20mm, or rotational displacement > 15mm, no contact between ends |
Various degrees of tilt |
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