Periacetabular fractures are often difficult to treat. They can happen intraoperatively in hip prosthetic replacement during the cup insertion (more often in press-fit cups), excessive acetabular reaming or they can occur after time and in stable cups due to adequate trauma.
For the correct treatment we have to know
- amount of bone loss?
- Column defects ? and which:
- central (lateral border)
- pelvic discontinuity (all three columns)
- previous surgery approach
To guarantee a sufficient stability of the acetabular cup, we need 2 intact or stable columns; mainly the posterior column
Classification of periacetabular (cup) fracture