Pain Research and Management / 2020 / Article / Fig 2

Clinical Study

Application of Anchoring Technique in Unilateral Percutaneous Vertebroplasty for Neurologically Intact Kümmell’s Disease

Figure 2

A 75-year-old female patient with Kümmell’s disease at L1 treated by PVP. (a, b) Preoperative radiographical images, the kyphoticangle α was marked with black lines; (c, d) coronal and sagittal CTscans showed the intravertebral vacuum sign; (e) the sagittal T1-weighted MR image showed a low signal intensity in the location of the cleft; (f, g) the sagittal T2-weighted MR image and STIR image showed a welldefined high signal intensity in the location of the cleft; (h) the height of the L1 vertebral body was partly recovered at a hyperextension position; (i–k) first, high-viscosity PMMA was injected under fluoroscopy during the early stage of dough period to plug the gap (i). Then, low-viscosity PMMA was prepared at the early stage of the wire drawing period and injected cautiously (j); (l, m) X-ray immediately after operation showed the bone cement filled the cleft; (n–p) CT scans at three month after operation; (q, r) no delayed displacement of bone cement or adjacent vertebral fracture were observed at the last follow-up.

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