Fig. 3

Radiological imaging at one month. A, B CT images reveal the absorption of IDC at the C2/3 and C3/4 levels after 1-month follow-up, and the OPLL at the posterior edge of C2 vertebral body and C2/3 disc level completely disappeared; C, D After 1-month follow-up, The transverse view showed alleviation of the compression on the dural sac at the C2/3 level,with residual calcification foci still present at the intervertebral disc level; E, F At the 6-month follow-up, MRI reveals increased signals in the C2/3 and C3/4 disc compared to the initial scans, indicative of reduced calcification