A high grade of flexibility to reconstruct patient anatomies is essential when it comes to revision surgeries. Modular revision stems are designed to be a highly customizable solution that can be tailored to the specific needs of each patients defect situation by offering multiple modular components, including proximal and distal bodies. Sebastian Meller, M.D., explains and demonstrates the surgical technique using the example of the Prevision® Modular Straight revision prosthesis on the human specimen.