Fig. 1.
Case 1. a CT reconstruction images. Preoperative CT image (left) shows a massive local type OPLL at C4-5, and postoperative CT image (right) shows complete resection of OPLL. b MR images. Preoperative MR image (left) shows severe compression of the spinal cord, and postoperative MR image (right) shows satisfying decompression of the spinal cord