Balloon kyphoplasty is a well-established treatment option to achieve pain relief and to correct kyphotic deformity caused by osteoporotic vertebral compression fracture. However, it has been demonstrated that reduction is partly lost as balloon is deflated in the vertebral body. An intravertebral expander was developed for better reduction and maintenance of vertebral body height while cement is injected. This study evaluates the efficacy of kyphoplasty with a new intravertebral expander with regard to correction of kyphosis angel and to restoration of vertebral body height.
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Radiological evaluation
Timeframe: 12 months