Segmental fracture of the middle third of the anterior column

segmental fracture of the middle third of the anterior column

-segmental fracture of the middle third of the anterior column, detaching a trapezoidal fragment that contains the anterior acetabular wall from the rest of the innominate bone

-superiorly, fracture line begins below the anterior inferior iliac spine

-medially, fracture line involves the anterior quadrilateral plate, so this pattern excludes isolated fractures of the anterior acetabular rim

-inferiorly, fracture line exits at the superior pubic ramus, distinguishing this pattern from anterior column fracture.

anterior column fracture-

-segmental fracture of the anterior column that crosses the obturator foramen, detaching a fragment that contains the anterior acetabular wall and most of the pubis from the rest of the innominate bone

-superiorly, fracture line begins variably in the anterior ilium (high: iliac crest

intermediate: between anterior iliac spines (anterior interspinous notch)

low: below the anterior inferior iliac spine (psoas gutter)

very low: anterior horn of the acetabular articular surface to the junction of ilium and pubis (iliopectineal eminence) )

-medially, fracture line involves the quadrilateral plate in a coronal orientation

-inferiorly, fracture line exits at the ischiopubic ramus, distinguishing this pattern from anterior wall fracture.Thank you.