Correlation between MSU Classifications in Preoperative MRI with Pain Relief in Patients with Radiculopathy, Treated by Intradiscal Discogel Injection

Background: Various tools and techniques of evaluation have been used to determine the severity of disc herniation in various regions of the spine, especially in the cervical and lumbar areas. But many of these techniques had been unable to correlate the severity of clinical manifestations with the severity of herniated disc. Introducing the new MSU Classification system, considering the two parameters of location and size of the herniated part, claims to be able to make a high correlation between the severity of clinical symptoms and the severity of the hernia. But this degree of correlation is still a question, particularly, about several methods of herniated disc treatments (especially drug treatments) are still unknown. In this study, the goal is evaluation of the correlation between the severity and extension of hernia in the cervical and lumbar regions based on MSU classification with pain relief following the intradiscal injection of Discogel in patients with disc herniation.