With contributions by numerous experts1 Historical Background.- 1.1 Conditions Before Charnley.- 1.2 John Charnley.- 2 Histomorphology of the Bone-to-Cement Contact.- 2.1 The Cemented Total Hip Arthroplasty.- 2.2 Histomorphology of the Bone-to-Cement Contact (Animal Experiments).- 2.2.1 Changes Around Normal Bone Cements.- 2.2.2 TCP/HA Bone Cements.- 2.3 Histomorphology of Human Samples.- 2.3.1 Material and Methods.- 2.3.2 Summary of Results.- 3 Can Cancellous Bone Carry the Load?.- 3.1 About the Deformation Behavior of Spongiosa.- 3.1.1 Elasticity.- 3.1.2 Viscoelasticity.- 3.1.3 Isotropic Deformation.- 3.1.4 Resilience and Damping.- 3.1.5 Damping.- 3.1.6 Breaking (Tensile) Strength and Toughness.- 3.1.7 Compliance.- 3.1.8 Energy.- 3.1.9 Impact.- 3.2 Deformation of Bone Through Different Implants.- 3.3 Stiffening of Spongiosa with Bone Cement.- 3.3.1 Human Histopathological Key Findings.- 3.3.2 Histomorphological Findings in the Proximal Femur After Joint Surface Replacement.- 3.3.3 Histomorphological Findings on Cancellous Bone Stiffened with Bone Cement in the Distal Epiphysis of the Femur in Rabbits.- 4 Approach to the Hip Joint.- 4.1 Posterolateral Approach.- 4.2 Transgluteal Approach.- 5 Preparation of the Acetabulum.- 5.1 Preparatory Steps.- 5.2 Exposure of the Acetabulum.- 5.3 Fossa Acetabuli.- 5.4 Preparation of the Bony Acetabulum.- 5.5 Anatomical Composition of the Joint Surface of the Acetabulum.- 5.6 Lavage, Anticoagulation and Stiffening of the Acetabular Roof.- 5.7 Inclination and Alignment.- 6 Preparation of the Bone Cement.- 6.1 Advantages of Standard Viscosity Bone Cement.- 6.2 Cold Storage as a Simple Method To Achieve a Temporarily Lower Viscosity.- 6.3 Homogeneous and Bubble-Free Mixture.- 6.4 Prepressurizing Bone Cements, a Conditio Sine Qua Non.- 6.5 Application of the Bubble-Free Bone Cement.- 7 Preparation of the Femur.- 7.1 Opening of the Medullary Canal and Implantation Axis.- 7.2 Surgical Diamond Instrumentation.- 7.3 Drainage of the Medull³t