The Aetiopathology of Pressure Ulcers: A Hierarchical Approach -- Medical Perspectives in the 21st Century -- Medico-Legal Implications -- Patients at Risk for Pressure Ulcers and Evidence-Based Care for Pressure Ulcer Prevention -- The Measurement of Interface Pressure -- Susceptibility of Spinal Cord-Injured Individuals to Pressure Ulcers -- Prevention and Treatment of Pressure Ulcers Using Electrical Stimulation -- Biochemical Status of Soft Tissues Subjected to Sustained Pressure -- Stump-Socket Interface Conditions -- Perspectives of Numerical Modelling in Pressure Ulcer Research -- Skin Morphology and Its Mechanical Properties Associated with Loading -- Compression-Induced Tissue Damage: Animal Models -- The Role of Oxidative Stress in the Development and Persistence of Pressure Ulcers -- Transport of Fluid and Solutes in Tissues -- Skin Model Studies -- In Vitro Muscle Model Studies -- Imaging Tissues for Pressure Ulcer Prevention -- Magnetic Resonance Imaging and Spectroscopy of Pressure Ulcers -- Microelectrodes and Biocompatible Sensors for Skin pO2 Measurements -- New Tissue Repair Strategies.