Effect of vertebroplasty with bone filler device and comparison with balloon kyphoplasty.

Abstract

PURPOSE: To evaluate the effect of vertebroplasty with a bone filler device

compared with balloon kyphoplasty. METHODS: A total of 222 patients underwent

operations from January 2008 to October 2012. One-level fractures numbered 169

(86.7%) cases and two-level fractures numbered 26 (13.3%). A total of 221

vertebral levels were analyzed consequently. Vertebral height, compression ratio,

and segmental Cobb's angle were measured in preoperative and postoperative

lateral X-rays. RESULTS: The compression ratio was the most influential parameter

among three variables. Adjusted postoperative compression ratio was not

significantly different between two operation groups. Bone cement leakage rates

did not differ (p < 0.05). Bone cement distribution was spongy type in the

majority of the vertebroplasty with bone filler device (94.5%), but only in 42.0%

of the kyphoplasty. High bone densitometry readings and long period from

diagnosis to operation were significant risk factors for bone cement leakage.

CONCLUSIONS: Vertebroplasty with a bone filler device could achieve equivalent

compression reduction and bone cement leakage rate, as well as greater

sponge-type bone cement distribution, which were advantages over balloon

kyphoplasty.