Health Care Organization and its Impact on Care of Diseases of the Hip -- Prevalence and Societal Burden of Hip Osteoarthritis -- Metabolic Syndrome, Obesity, and Osteoarthritis -- Biomechanical Considerations in Arthritis of the Hip -- Gait Pathomechanics in Hip Disease -- Femoroacetabular Impingement -- Osteonecrosis -- Osteoporosis and Hip Fractures -- Preoperative Management of Paget's Disease -- Metabolic Bone Disease Following Organ Transplantation -- Options for Primary Hip Arthroplasty -- Hip Sepsis and the Prevention of Perioperative Infections -- Venous Thromboembolism in Total Hip Arthroplasty.