Physical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and treating patients with physical disabilities. A physical medicine physician, also called a physiatrist treats diseases and disorders including neck and back pain, and sports injuries or disorders resulting from trauma, such as spinal cord injury or head injury. The physiatrist works with the patient using X-rays, a physical exam, laboratory study, pain management and/or physical therapy, to achieve rehabilitation. The primary goal of the physiatrist is to achieve maximal restoration of physical, psychological, social and vocational function through comprehensive rehabilitation.