Shoulder arthritis is steadily increasing in its incidence in all age groups. This text will describe the diagnosis, classification, assessment, and management of shoulder arthritis. It will start with conservative treatments and their rational quickly moving into various minimally invasive treatments along with specific techniques. The second part will concentrate on joint replacement involving various alternatives for traditional arthroplasty and then, by age group, goes into specifics unique to that population. In a multidisciplinary format the authors will discuss both how to prevent failure and how to diagnose and manage shoulder arthritis in all age groups, from the young to the very old including imaging, laboratory testing, nutrition, surgery and rehabilitation.

Emilio Calvo is the Director of the Shoulder and Elbow Reconstructive Surgery Unit and Professor of Orthopedics at the Department of Orthopedic Surgery of at Fundacion Jimenez Diaz, a teaching hospital affiliated with the Autonomous University of Madrid. He is an active member of national and international scientific societies, like the European Society for Surgery of the Shoulder and Elbow (ESSSE), the American Shoulder and Elbow Surgeons (ASES), the European Society for Sports and Knee Arthroscopy (ESSKA), and the International Society of Arthroscopy, Knee Surgery and Orthopedic Sports Medicine (ISAKOS). He has served as a member of the ESSSE Program Committee and the ISAKOS Upper Extremity Committee.

Giovanni Di Giacomo is the Head of the Orthopedics and Traumatology department at the Concordia Hospital in Rome (ISAKOS Teaching Center). He has been European Chairman of STMS (Society for Tennis Medicine and Science) since 2016, and since 2022 he is the President of the Italian Society of Knee, Arthroscopy, Sports, Cartilage, Orthopedic Technologies (SIAGASCOT). Dr. Di Giacomo is also a member of many other prestigious scientific societies, as AAOS (American Academy of Orthopedic Surgeons), Upper Extremity Committee of ISAKOS (International Society of Arthroscopy, Knee Surgery and Orthopedic Sports Medicine).

Augustus D. Mazzocca is a Professor at the Department of Orthopedic Surgery at UConn Health. He is the Director of the Orthopedic Bioskills Laboratory, and Director of Resident Education for the Department of Orthopedic Surgery. He is also an active team physician for the UConn athletic teams. He specializes in the management of shoulder and elbow problems. He is a member of the prestigious American Shoulder and Elbow Surgeons Society, as well as being a member of the European Society for Surgery of the Shoulder and Elbow. He is a co-founder of the New England Shoulder and Elbow Society.