Hip Pelvis.  2014 Sep;26(3):194-197. 10.5371/hp.2014.26.3.194.

Atypical Pelvic Crescent Fracture Caused by Vertical Shear Force

• Park SE
• Lee SW
• Kim WY
• Park Y

• KMID: 2054185
• DOI: http://doi.org/10.5371/hp.2014.26.3.194

Abstract

The crescent fracture consists of a posterior iliac wing fracture with extension into the sacroiliac joint and a dislocation of the sacroiliac joint. This fracture represents a subset of lateral compression injury. The strong posterior ligaments of sacroiliac joint remain intact and a fracture fragment (crescent shape) involving the posterior superior iliac spines remains firmly attached to the sacrum. We report a patient with atypical pelvic crescent fracture that is mainly influenced by vertical shear injury and is characterized by posterior fracture-dislocations of the sacroiliac joint. In this case report, we review the literature on classification and treatment of atypical type of crescent fracture.

Keyword

Pelvic bones; Crescent fracture; Vertical shear injury

MeSH Terms

Classification
Dislocations
Humans
Ligaments
Pelvic Bones
Sacroiliac Joint
Sacrum
Spine