| 摘要 |
A spinous process clamp employs a pair of elongate plates that are positioned on either side of the spinous processes of vertebrae that are to be fused. The plates are joined by fasteners, preferably bolts and nuts. When the bolts and nuts are tightened, the spinous processes are clamped between the plates, thereby preventing motion between the clamped vertebral bodies. In an embodiment especially adapted for immobilizing a patient's lower lumbar region, the clamp is provided with projections that engage the patient's sacrum and brackets that are connected to the sacrum. The invention eliminates the use of pedicle screws, wires, or hooks, thereby greatly simplifying the installation process.
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