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Updated: Jun 10, 2026
Nine-Grid Area Division Method: A New Ideal Bone Puncture Region for Percutaneous Vertebroplasty in Lumbar Spine
Published on: August 9, 2024
Morphologic change in vertebral body after percutaneous vertebroplasty: follow-up with MDCT
Akio Hiwatashi1, Takashi Yoshiura, Koji Yamashita
1Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
Objective:
The purpose of this prospective study was to evaluate maintenance of spinal canal size and restoration of vertebral height and wedge angle after percutaneous vertebroplasty.
Subjects And Methods:
This study included 27 patients (19 women, eight men) with osteoporotic compression fractures (52 vertebrae). MDCT with multiplanar reformation was performed within 1 day before and 1 hour after the procedure and 1 year after the procedure on a routine or as-needed basis. The degree of retropulsion, smallest size of the spinal canal, and vertebral height and wedge angle were measured. Statistical analyses were performed with the paired Student's t and Mann-Whitney U tests.
Results:
There were no statistically significant differences in degree of retropulsion or size of the spinal canal before and after treatment and at the follow-up evaluation (p > 0.05). Even in the 36 vertebrae with spinal canal compromise before the procedure, there was no significant change in spinal stenosis (p > 0.05). Vertebral height and wedge angle were restored immediately after treatment (1.2 mm and 2.8 degrees , p < 0.05). These restorations were more prominent in vertebrae with fracture clefts than in those without clefts (p < 0.05). Restoration of vertebral height and wedge angle were diminished, but the preprocedure results were maintained in follow-up (0.4 mm and 1.1 degrees , p > 0.05).
Conclusion:
Vertebroplasty can maintain vertebral height and wedge angle and spinal canal size at least 1 year after treatment.