X-rays typically aren't useful or needed. But if your medical history and physical exam
suggest a more serious condition (such as a tumor, infection, fracture, or
severe nerve damage), or if your leg pain and other symptoms don't get better
after 4 weeks of nonsurgical treatment, your doctor may order X-rays.
tests, such as blood tests, may be done to rule out other conditions.
tests aren't used as often as an MRI or a CT scan, but they may give
your doctor more information: