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Vertebral augmentation improves deformity of vertebral body fractures
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A comparison study of balloon kyphoplasty and KIVA, a vertebral augmentation device, used in 168 patients with osteoporotic vertebral body fractures showed both techniques significantly restored anterior, posterior and midline vertebral body height ratios.
“Both KIVA [VCF Treatment System (Benvenue Medical; Santa Clara, Calif.)] and [balloon kyphoplasty] BK restored in short-term similarly vertebral body height, but only KIVA restored vertebral body wedge deformity,” Panagiotis Korovessis, MD, PhD, and colleagues wrote in the study abstract. KIVA treatment was associated with significantly less extracanal leakage than BK, they noted.
Korovessis and colleagues found residual kyphosis of >5° significantly more often in the BK group than in the KIVA-treated group. In both groups, the SF-36, Oswestry Disability Index and Visual Analog Scales scores significantly improved at 14-month follow-up and the rate of new fractures was similar, according to the abstract.
The researchers noted that further observation may help them understand how the radiological changes affect function, according to the abstract.
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