Cellular transplantation and platelet-rich plasma injections for discogenic pain: a contemporary review.

Degenerative disc disease (DDD) is the leading cause of chronic back pain. It is a pathologic condition associated with aging and is believed to result from catabolic excess in the intervertebral discs' (IVD) extracellular matrix. Two new treatment options are intradiscal cellular transplantation and growth factor therapy.