Epidemiologic and Economic Aspects of Osteoarthrosis.- Clinical Picture of Osteoarthrosis.- Morphogenesis of Osteoarthrosis.- Movement-Induced Orientation: A Potential Mechanism of Cartilage Collagen Network Morphogenesis.- Pharmacological Basis for the Therapy of Osteoarthrosis.- Drug Treatment of Osteoarthritis: Clinical Aspects.- Histological Changes of Cartilage and Subchondral Bone in Varus Gonarthrosis: Comparison with Radiographic and Macroscopic Findings.- Arthroscopic Management of Degenerative Joint Disease.- Arthroscopic and Open Techniques for Transplantation of Osteochondral Autografts and Allografts in Different Joints.- Tissue Engineering in Cartilage Repair: In Vitro and In Vivo Experiments on Cell-Seeded Collagen Matrices.- Autologous Chondrocyte Grafting for the Treatment of Cartilage Defects.- Perichondrial Grafting for the Treatment of Hyalin Cartilage Defects: Experimental In Vitro and In Vivo Data.- Cartilage Destruction of the Knee Due to Partial Meniscal Resection.- Meniscus Replacement and Osteoarthrosis.- Evaluation of Arthroscopic Techniques and Osteotomies in Gonarthritis.- Gonarthrosis Treatment According to the “Knee School” Method — A Prospective Randomized Study.- Knee School: Practical Management in Rehabilitation.- Psychologic Aspects of Training Therapy.