The purpose of this study is to analyze data available in the PIs Regenerative Orthobiologics Registry (ROR) and corresponding patient charts that will either support or refute the efficacy of Intra-annular fibrin as treatment for moderate to severe low back pain. Additionally, we seek to retrospectively identify possible predisposing factors that are correlated with positive outcomes with respect to patient-reported pain and function.
Intra-annular injections of non-autologous fibrin for moderate to severe chronic low back pain (LBP).