If you get injured and experience pain in your joints like arthritis, knee or shoulder pain, foot and ankle injury or have neck or back pain, your evaluation starts with Doctors who will do the necessary workup of your pain and fine tune the root cause of the pain. He can do this by performing in-house digital X-ray images, musculoskeletal ultrasound and/or a special nerve test called electromyography i.e. EMG/NCS.