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Increase in vertebral body height after vertebroplasty
Akio Hiwatashi1, Toshio Moritani, Yuji Numaguchi
1Department of Diagnostic Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642-8648, USA.
AJNR. American Journal of Neuroradiology
|February 20, 2003
Summary
Vertebroplasty often increases vertebral body height, with average increases of 2.5 mm anteriorly and 2.7 mm centrally. The clinical significance of this height increase following vertebroplasty remains undetermined.
Area of Science:
- Orthopedic surgery
- Radiology
- Spinal interventions
Background:
- Clinical observations suggest vertebroplasty increases vertebral body height.
- Limited literature exists on the frequency and magnitude of this height change.
Purpose of the Study:
- To quantify the frequency and degree of vertebral body height changes after vertebroplasty.
- To document changes in anterior, central, and posterior vertebral body heights.
Main Methods:
- Measurement of 85 vertebral bodies in 37 patients before and after vertebroplasty.
- Inclusion of adjacent, unoperated vertebral bodies as controls.
- Utilized MRI and CT imaging for pre- and post-procedure measurements.
Main Results:
- Average vertebral body height increases observed: 2.5 mm (anterior), 2.7 mm (central), 1.4 mm (posterior).
- 13 out of 85 treated vertebrae showed no change in height.
- Control vertebral bodies demonstrated no changes, validating the procedure's effect.
Conclusions:
- Vertebroplasty frequently results in an increase in vertebral body height.
- The clinical implications of post-vertebroplasty vertebral body height augmentation are currently unknown.