J Korean Fract Soc.  2006 Oct;19(4):471-476. 10.12671/jkfs.2006.19.4.471.

Comparison of Uniportal and Biportal Vertebroplasty in Bone Cement Distribution and Leakage

• Lee JH
• Yoon KS
• Kang SB
• Jo H
• Lee SK
• Chang BS
• Lee CK
• Lee JH

• KMID: 2290523
• DOI: http://doi.org/10.12671/jkfs.2006.19.4.471

Abstract

PURPOSE: To evaluate the differences of radiological outcomes of uniportal and biportal vertebroplasty in the point of bone cement distribution and leakage.
MATERIALS AND METHODS
A retrospective study reviewing the period between May 2002 and January 2006 investigated 100 vertebrae which underwent vertebroplasty and followed for more than three months by uniportal approach (55 vertebrae, group 1) and biportal approach (45 vertebrae, group 2). The operative time, the amount of bone cement injected, anterior vertebral height restoration, kyphotic angle, bone cement distribution, and bone cement leakage were evaluated.
RESULTS
The amount of injected bone cement of group 1 (3.9 cc) was statistically smaller than that of group 2 (5.1 cc) (p=0.016). There were no significant differences in the operative time, anterior vertebral height restoration, kyphotic angle in both groups. The rate of bone cement distribution over 8 zones was significantly higher in group 2 than in group 1 (p=0.014). However, the rate of bone cement distribution over 7 zones and the rate of bone cement distributed on whole anterior vertebral body were not significantly different in both groups. The cement leakage was not also significantly different in both groups.
CONCLUSION
Although the amount of injected bone cement was smaller in uniportal vertebroplasty, the radiological results and cement leakage were similar to biportal vertebroplasty. These findings suggest that uniportal vertebroplasty can be the operative options in osteoporotic vertebral fracture.

Keyword

Percutaneous vertebroplasty; Uniportal approach; Biportal approach; Cement distribution; Cement leakage; Anterior vertebral height restoration; Kyphotic angle

MeSH Terms

Ion Transport*
Operative Time
Retrospective Studies
Spine
Vertebroplasty*