Acetabular fracture are common in elder patients and high energy trauma in younger one.

However, the fracture deplacement induces incongruity between cotyloid cavity and femoral head. Anatomic reduction and osteosynthesis of these fracture are technically difficult .

3D printing ease the process of operating planification or implant fabrication. The 3D impression allows to obtain a model on the scale of the pond of the patient allowing to pre mold plates on the anatomy of the patient before he is operated with the aim of decreasing the surgical time and improving the quality of the reduction.

Inclusion Criteria:

• age >18
• acetabulum fracture within one month
• anterior access or double access

Exclusion Criteria:

• acetabulum fracture more than one month

patient admitted in orthopaedic yard for acetabulum fracture