As part of the orthopaedic and trauma surgery forum “Bewegung am Rhein” (BAR), the WET-LAB COURSE took place at the Institute of Anatomy of the University of Bonn on 23 April, and the PETER BREHM Skills Lab using artificial bone took place on 24 April in Bonn. The instructor, PD Dr Max Jaenisch (University Hospital Bonn), reported on some case presentations and discussed possible solutions. This was an ideal opportunity to demonstrate how large acetabular defects can be optimally treated surgically using the MRS-TITAN Maximum revision cup – a compelling product solution for load-bearing acetabular reconstruction.