This is the branch of surgery that specializes on the musculoskeletal system. It involves the treatment of spine diseases, sports injuries, bone fracture, musculoskeletal trauma, degenerative diseases, infections, tumours, and congenital disorders. Most musculoskeletal injuries impair the functionality of the region affected. The immobility of the arms or legs is a common phenomenon in a patient that suffers a traumatic injury. An orthopedic surgeon is a name for a specialist in this field of surgery.