The book examines recent developments in regenerative medicine and the use of musculoskeletal ultrasound. Musculoskeletal regeneration has become a prominent research topic, no doubt due to the sociological and economic pressures imposed by the current ageing population. The ever expanding role of regenerative medicine and the identification as well as characterization of stem cells have introduced a major paradigm shift in the field of musculoskeletal and sports medicine as well as orthopaedic surgery. Whereas in the past, diseased tissue was replaced with allograft material, current trends in research revolve around regenerating damaged tissue.