One more thing to know about the IVD is the improved fluid exchange can reverse the unnatural state of acid pH in the painful disc. Since the IVD lacks vascularization, enhanced fluid exchange is the ONLY mechanism for improved cellular nutrition and removal of waste products. Improved hydration can ONLY be achieved by physically PUMPING water in and out of the IVD via spinal motion. Furthermore, persistent pain at an injury site suggests inadequate fluid exchange.
Source: Mooney, Vert, MD Journal of Musculoskeletal Medicine 1995; Oct., 33-39.
The VDP may be a useful technique to facilitate dynamic fluid exchange and improve the life and health of the IVD, while reducing pain.