This document describes the classification of acetabular fractures. It outlines the Judet and Letournel system as the most commonly used, which categorizes fractures into simple or associated types. Simple fractures involve a single wall or column, while associated fractures have more complex geometry like T-shapes or combinations of the posterior column and wall. The classification also discusses hip dislocations based on the relationship of the femoral head to the acetabulum and any accompanying fractures, using the Thomas and Epstein system of 5 types defined by the condition of the posterior wall and floor.

1. CLASSIFICATION OF
ACETABULAR FRACTURES
Dr. Ayesha
Mughal

2. INTRODUCTION:
Described Judet and Letournel.
Most commonly used system.
Two basic types:
 Simple fracture type.
 Associated fracture type.

4. SIMPLE FRACTURE:
Isolated fracture of one wall or column.

5. SIMPLE FRACTURE TYPES:
Posterior wall fracture.
Posterior column fracture.
Anterior wall fracture.
Anterior column fracture.
Transverse fracture.

6. ASSOCIATED FRACTURES:
More complex fracture geometry.

7. T-type fractures.
Combined fracture of posterior column and
wall.
Combined transverse and posterior wall
fracture.
Anterior column and posterior hemitransverse
fracture.
Both column fracture.

9. CLASSIFICATIN OF HIP
DISLOCATION:
Based on:
Relationship of femoral head to acetabulum.
Associated fractures.

10. THOMAS AND EPSTEIN
CLASSIFICATION:
Type I: Posterior dislocation with or without an
insignificant posterior wall fragment.
Type II: Dislocation associated with single large
posterior wall fragment.
Type III: Dislocation with comminuted posterior
wall fragments.

11. CONTINUED………
Type IV: Dislocation with fracture of the
acetabular floor.
Type V: Dislocation with fracture of the femoral
head.