Fig. 3From: Percutaneous endoscopic lumbar discectomy combined with platelet-rich plasma injection for lumbar disc herniation: analysis of clinical and imaging outcomesRepresentative images of patients in the PRP group. A and B Preoperative MRI showed L4-5disc herniation with nerve root compression. C and D At 3 months postoperatively, MRI showed removal of the herniated disc, and adequate decompression of the spinal canal. E and F At 12 months postoperatively, MRI showed further decompression of the spinal canalBack to article page