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Cervical Laminoplasty
By increasing the space for the spinal cord and nerve roots, laminoplasty reduces the cause of pain and may help prevent progression of spinal deformity. It preserves the stability of the neck, but may result in loss of the ability to extend the neck backwards and may reduce other cervical motion. A relapse of pain may occur if excessive bone growth occurs as the bone heals.
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The lamina is a flat portion of bone that is the back portion of the vertebra. When the spinal canal has become too small due to injury or disease, the canal may be made larger by use of laminoplasty. This procedure helps to alleviate pain and discomfort. An incision is made down the back of the neck to expose the cervical vertebrae. On one side of the vertebral column, the lamina are cut far enough to create a hinge-like movement, much like a door. Then the lamina on the other side are cut all the way through to, in effect, open the "door." The back portions of the vertebrae, the spinous processes (bumps you feel on the back of the neck) are removed to make more room for the "door" to open. After gently opening the "door" of each vertebra to create more room for the spinal cord and nerve roots behind it, bone wedges are inserted to keep the door from totally closing. Then the door is closed securely onto the wedges, resulting in an expanded "doorway" for the nerves.
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