Increase in Vertebral Body Height after Vertebroplasty
Akio Hiwatashia,
Toshio Moritania,
Yuji Numaguchia and
Per-Lennart Westessona
a From the Department of Diagnostic Radiology, University of Rochester Medical Center, Rochester, NY
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FIG 1. 85-year-old man with osteoporosis.
A, Preoperative lateral radiograph of the lumbar spine shows compression fracture of L4 with associated anterior wedging deformity. The transpedicular bone biopsy needle is in place.
B, Postoperative lateral radiograph shows considerable increase in vertebral body height, especially in the anterior (3 mm) and central (4 mm) portions.
C and D, Schematic drawings of the preoperative (C) and postoperative (D) lateral radiographs. Kyphosis is improved from 25° to 28°.
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FIG 2. 93-year-old woman with osteoporosis.
A, Preoperative sagittal T1-weighted MR image shows compression fracture of L2 vertebral body. The inferior aspect of L1 vertebral body shows hypointensity, suggesting edema due to compression.
B, Preoperative sagittal T2-weighted MR image shows compression fracture of L2 vertebral body.
C, Postoperative CT sagittal reformation shows increased height of L2 vertebral body, especially in the anterior and central portions.
D and E, Schematic drawings of preoperative (D) and postoperative (E) measurements of the anterior (A), central (C), and posterior (P) vertebral body heights. The vertebral body height of L2 increases 7 mm anteriorly and 9 mm centrally, whereas the posterior vertebral body height of L2 remains unchanged. The vertebral body height of L1 is also unchanged.
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AJNR - American Journal of Neuroradiology