X-Ray is the most common test performed today.
X-rays are widely used today and are often called radiographs. These tests are not performed at random. An x-ray would most likely be performed when spine or extremity pain (e.g. leg, arm) is severe or chronic and progressive. An x-ray may rule out particular problems involving bone and some soft tissue disorders. When an x-ray proves inconclusive additional tests may be ordered especially if something suspicious is detected.