TY - CHAP M1 - Book, Section TI - Intradiscal Biacuplasty A1 - Yelle, Mark A1 - Kapural, Leonardo A2 - Diwan, Sudhir A2 - Staats, Peter S. Y1 - 2015 N1 - T2 - Atlas of Pain Medicine Procedures AB - Approximately 45% of back pain can be attributed to discogenic source.1,2 Lumbar discogenic pain is typically caused by pathophysiological changes that occur within the intervertebral disc. A loss of hydration in the nucleus pulposus from aging, chronic abnormal posturing, or injury can lead to both, delamination and fissuring in the annulus fibrosus (Figure 36-1A, B). This structural damage is a part of unclear degenerative process, where in addition to described changes, there is an in-growth of the nerve endings (nociceptors) that are normally restricted to the outer third of the annulus, extending now to the nucleus of the affected disc. Inflammatory cytokines such as tumor necrosis factor, nitric oxide and metalloproteinases, are also released, causing pain through several possible mechanisms. These changes transform the disc into a primary nociceptive structure. In addition, structural changes intrinsic to the intervertebral disc can lead to reduced mechanical load-bearing capacity resulting in altered spinal biomechanics, which can contribute to future back pain. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1107197707 ER -