Stryker's Global Modular Replacement System uses state of the art technology to produce high-performance implants for the increasing needs of patients. The Distal Femoral Modular Replacement System is used for the reconstruction of large segmental defects caused by trauma, failed arthroplasty or tumors. It consists of cemented stems, distal femoral components and extension pieces. The Proximal Femur Modular Replacement System has components of an increased neck length to suit various patients' anatomies and improve the range of motion. It comprises press-fit stem components and cemented stems, as well as extension pieces. The Proximal Tibia Modular Replacement System is for the reconstruction of large segmental defects of the proximal tibia and to rebuild osteoarticular defects.