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Back| Result Interpretation | ||
|---|---|---|
| Classification | Features | |
| Lateral Compression (LC) | Type I | Fracture of the pubic ischial ramus and sacral compression fracture; all ligamentous structures of the pelvis are intact, and the pelvic ring is stable. |
| Type II | Often associated with tearing of the sacroiliac posterior ligament or posterior superior iliac spine avulsion. Due to posterior ring injury, it is unstable with rotation. The pelvic floor ligaments remain intact, thus relatively stable in the vertical direction. | |
| Type III | Also known as "windswept" pelvis. A typical injury caused by a rolling machine, primarily due to internal rotation displacement resulting in LC-II type injury on the affected side; when the wheel rolls over the contralateral hemipelvis, it causes external rotation stress (or anteroposterior compression) injury. | |
| Anteroposterior Compression (APC) | Type I | Stable injury, isolated pubic symphysis or pubic ramus injury. |
| Type II | Rotationally unstable injury, associated with pubic symphysis separation or pubic ramus fracture, damage to the sacrotuberous ligament, sacrospinous ligament, and anterior sacroiliac ligament. | |
| Type III | Often associated with tearing of the sacroiliac posterior ligament, resulting in rotational and vertical instability. | |
| Vertical Shear Injury (VS) | Axial force applied to the pelvis, resulting in complete tearing of all ligamentous and bony stabilizing structures. The iliac wing does not show significant external rotation, but upward and backward displacement is common. | |
| Combined Mechanical Injury (CM) | Injuries caused by various mechanisms, a combination of any two or three of the APC, LC, and VS injuries, typically seen with LC combined with VS. | |
Notes
This classification system closely revolves around the mechanism of injury for fractures and is widely used in the emergency treatment of pelvic fractures.
