Effects of Preoperative 3D Printing of Distal Intra-articular Radius Fractures on Quality of Fracture Reduction

Inclusion Criteria: * Patient older than 18 years * Surgery criteria fulfilled * Informed consent * Intra-articular Fracture of the distal radius (AO 23-B and 23-C) (also including Avulsion of the processus styloideus ulnae AO/OTA 2U3A1.1) in preoperative CAT-Scan Exclusion Criteria: * Patient does not want a surgical treatment * Patient does not want to participate * Positive history for surgery due to injury of the hurt wrist beforehand * Positive history for surgery due to injury of the opposite wrist beforehand * Additional injuries to the hand and forearm (except distal ulna fracture AO 2U3A1.1) * Pregnancy * Vulnerable people * Distal ulna fracture (except AO 2U3A1.1) * Extraarticular radius fracture (AO 23-A) * Concomitant injuries which interfere with the planned aftercare (intubated for a long time, additional elbow or shoulder fracture)