Spine Fracture Clinical Trial
Official title:
Comparison of Kyphoplasty With and Without Rotary Cutter Subacute Osteoporotic Vertebral Fractures
Kyphoplasty(PKP) is performed under general anaesthesia in patients with osteoporotic vertebral compression fracture. The balloon is first placed into the fractured vertebra and inflated with contrast agent for height restoration. Then, the cement is injected into the cavity created by the balloon. As the diffusion of cement can be interfered by closely barriers formed by surrounding cancellous bones, refractures are often found in patients with conventional PKP. Furthermore, the loss of restored height of surgical vertebrae due to refracture in PKP. The investigators will applied a rotary cutter to destroy the structure of the cavity created by the balloon. Finally, the cement is injected, which may effectively interdigitates with the surrounding cancellous bone.
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