Recurrent disc herniation following percutaneous endoscopic lumbar discectomy preferentially occurs when Modic changes are present

摘要

Example of rLDH on the L4/5 level in a 52 years old male with MCs: T1-weighted ( ) and T2-weighted ( ) MR images of lumbar endplates showed the presence of type II Modic changes (indicated by high signal on T1 and T2) on L4/5 level. MRI showed disc herniation on the same level ( , ); the herniated cartilage was present in the intraoperative specimen ( ). Reappearance of the same pain as presentation and MRI confirmation of the recurrent herniation on the same level after 6 months follow-up ( , ), then fusion was performed ( , )