Table 1 Classification of sacral fractures [7]

Denis classification

Isler classification

Roy-Camile classification

Alphabetical classification

Zone 1, lateral to the foramens; Zone 2, in the foramens; Zone 3, medial to the foramens

Type A, lateral to the facia. Type B, through the facia. Type C, medial to the facia

Types 1 and 2 in flexion; Type 3 in extension; Type 4, comminutive

I In H, U, Lambda and T