Fig.4From: A comparative study of percutaneous endoscopic interlaminar discectomy and transforaminal discectomy for L5-S1 calcified lumbar disc herniationPre- and post-operative MRI and CT (A-H). A-D Preoperative CT and MRI showed lumbar disc herniation combined with calcification. E–H Postoperative CT and MRI revealed the loosened nerve root after the calcified disc was removed by PETDBack to article page