The Kocher-Langenbeck approach is a nonextensile approach to the posterior acetabular column, which allows direct visualization of the dorsocranial part of the acetabulum, either through the fracture gap, or after capsulotomy.
Trochanter flip extension
The trochanter flip can be used to extend the exposure of the Kocher-Langenbeck approach superiorly and anteriorly.
This approach provides access to the iliac crest and the entire internal iliac fossa.
The extended iliofemoral approach (EIF) exposes the entire lateral innominate bone, by posterior reflection of the abductors, and reflection of short external rotators.
The ilioinguinal approach is used for virtually all fractures of the anterior wall and anterior column.