Table 2: Tile classification of pelvic injuries [22].

Type A: Stable fractures (sacroiliac complex is intact)

 A1Avulsion fractures
 A2Wing of ilium fractures
 A3Sacorcoccyx transverse fractures

Type B: partially stable fractures (partial disruption of the posterior sacroiliac complex)

 B1Open book lesion
 B2Lateral compression lesion
 B3Bilateral compression lesion

Type C: unstable fractures (complete disruption of the posterior sacroiliac complex)

 C1Unilateral lesion
 C2Bilateral lesion (one side B, one side C)
 C3Bilateral lesion (both sides C)