Pathophysiology of Osteomyelitis; Prevention of Infection; Antimicrobial Treatment of Musculoskeletal Infections; Classification and Treatment of Osteomyelitis in Adults; Immune Responses and Musculoskeletal Disease; Infection of the Joints; Management of Infected Fractures; Management of Infected Fractures; Infected Nonunion Management; Total replacement of infected hip; Total Infectious Knee Arthroplasty; Arthroplasties Infected in the Hand and the Wrist; Management of traumatic osteocutaneous defects in the lower extremity; Non-Spinal Tuberculosis; Uncommon Infections in Orthopedic Surgery; Diagnostic and Staging Strategy for Musculoskeletal Tumors; Biopsy Technique in Musculoskeletal Tumors; Principles of Musculoskeletal Oncology Surgery; Foot Tumors; Bone Benign Cartilage Tumors; Benign Fibrous Bone Tumors, Including Cysts; Osteoblastoma and osteoid osteoma; Extra-abdominal desmoid tumors; Benign soft tissue lesions; Bone Giant Cell Tumor; Fibrous Bone Lesions; Osteosarcoma; Round tumors of small cells; Bone Chondrosarcoma; Adamantinoma of long bones; Cordoma; Bone Malignant Vascular Tumors; Malignant Fibrous Soft Tissue Lesions; Traditional Surgical Techniques for Member Resection-salvage of Extremity Adult Soft Tissue Sarcomas; Rhabdomyosarcoma of the extremities in children and young adults; Liposarcoma; Metastatic Bone Disease and Myeloma; Hip and pelvic reconstruction Metastatic disease; Principles of Amputation Surgery in Trauma; Principles of Amputation Surgery in Vascular Disease; Amputation of upper limb; Amputation of lower limb; Amputations for Tumor, Postsurgical Management.