The purpose of this study is to compare clinical and radiographic outcomes in patients undergoing transforaminal lumbar interbody fusion (minimally invasive or open) with either Virtuous bone graft or autograft/allograft bone graft.~Compare the lumbar fusion rates at 12 and 24 months when lumbar arthrodesis is performed using Virtuous or Autograft Bone Graft. Surgical approach is limited to TLIF (MIS or Open) with posterior fixation and supplemental posterolateral fusion as directed by physician, but must comply with FDA approved/cleared indication for use and labeling.
Compare the lumbar fusion rates at 12 and 24 months when lumbar arthrodesis is performed using Virtuous or Autograft Bone Graft. Surgical approach is limited to TLIF (MIS or Open) with posterior fixation and supplemental posterolateral fusion as directed by physician, but must comply with FDA approved/cleared indication for use and labeling.