Interventional Assessment of the Lumbar Disk: Provocation Lumbar Diskography and Functional Anesthetic Diskography
2009
The diagnosis of diskogenic low back pain (LBP) can be elusive. Physical examination of the lumbar disk is limited and imaging offers few objective clues. While invasive, lumbar diskography is a method available to examine or "provoke" the disk directly and determine if LBP is coming from a disk and which disk(s) is responsible for the pain. Once identified, features of the abnormal disk can be evaluated, including the disk's response to intradiskal local anesthetic and disk architecture as observed on diskography imaging and postdiskogram computed tomography. Response to anesthetic can be correlated with imaging features potentially impacting treatment but can also stand alone as an independent objective marker of diskogenic LBP. Here we review the indications for lumbar diskography and the basic lumbar diskogram procedure. We also review the alternative more advanced technique for studying the anesthetic and mechanical features of the disk, functional anesthetic diskography.
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