Figure 2

Preoperative, postoperative and 6 years postoperative follow-up CT scan and MMO showed a substantial reduction of the ankylotic block and stable improvement of MMO. (a) Preoperative transverse CT scan; (b) preoperative coronal CT scan; (c) preoperative sagittal CT scan; (d) preoperative 3D reconstruction of CT scans; (e) preoperative MMO; (f) postoperative transverse CT scan; (g) postoperative coronal CT scan; (h) postoperative preoperative sagittal CT scan; (i) postoperative 3D reconstruction of CT scans; (j) postoperative MMO; (k) 6 years postoperative transverse CT scan; (l) 6 years postoperative coronal CT scan; (m) 6 years postoperative sagittal CT scan; (n) 6 years postoperative 3D reconstruction of CT scans; (o) 6 years postoperative MMO.