[A new type of iliac fracture caused by bone insufficiency].

BACKGROUND

The iliac bone is an uncommon localization for bone insufficiency fractures. We report a new type.

CASE REPORT

A 51-year-old woman with post-menopause osteoporosis was seen for a fracture of the ischio-pubic branch of the iliac bone. X-ray also revealed an unknown fracture situated above the anterior superior iliac spine continuing cranially and medially towards the iliac crest.

DISCUSSION

Three types of iliac fractures due to bone deficiency have been described. Type 1, (oblique iliac), the fracture is oblique beginning in the greater sciatic notch and extending a more or less into the iliac wing. Type 2 (superior medial iliac) involves the most medial part of the iliac wing, approximately parallel to the sacroiliac joint. In type 3 (supra-acetabular), the fracture is in a supra-acetabular localization. Our case suggests a fourth type should be individualized.