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Lumbar provocative discography (also referred to as "discography" or discogram) is an invasive diagnostic procedure for evaluation for intervertebral disc pathology. It is usually reserved for persons with persistent, severe low back pain (LBP) who have abnormal spaces between vertebrae on magnetic resonance imaging (MRI), where other diagnostic tests have failed to reveal clear confirmation of a suspected disc as the source of pain, and surgical intervention is being considered. Needles are inserted through the back into the disc near the suspect area, guided by fluoroscope imaging. Fluid is then injected to pressurise the disc, any pain responses are recorded. This is repeated in random order for the various discs, without the patient knowing which disc is pressurised. This can be used to detect patients who may be exaggerating their symptoms, or to assess their pain response and hence their suitability for recovery from possible surgery (often a Discectomy). A contrast agent is introduced, and after the procedure a CT scan identifies leakage from the discs to identify any spinal disc herniation. Possible complications include nerve damage, discitis, an infection of the disc. Strong antibiotics are usually administered as a precaution. ==References== * * (medscape.com ) * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lumbar provocative discography」の詳細全文を読む スポンサード リンク
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