Pain Research and Management / 2020 / Article / Fig 1

Clinical Study

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

Figure 1

A 78-year-old male patient with Kümmell’s disease at T12 treated by PVP. (a) Preoperative sagittal CT scan showed the intravertebral vacuum sign; (b) sagittal T1-weighted MR image showed a low signal intensity in the location of the cleft; (c, d) sagittal T2-weighted MR image and short tau inversion recovery (STIR) image showed a well-defined low signal intensity in the location of the cleft; (e) the height of the affected vertebral body was partly recovered at a hyperextension position; (f) the low-viscosity PMMA adhered to the previous high-viscosity mass and diffused into the intervertebral trabecular space; g-h: X-ray immediately after operation showed the bone cement filled the cleft without leakage. The symmetric distribution of the bone cement was verified (g), the low-viscosity PMMA was firmly fixed in the vertebral body like a ship anchor to prevent the slide of the highviscosity mass of bone cement (h); (i, j) no delayed displacement of bone cement, or adjacent vertebral fracture were observed at the last follow-up.

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