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Discectomy
A discectomy (also called open discectomy) is the surgical removal of herniated disc material that presses on a nerve root or the spinal cord. The procedure involves removing the central portion of an intervertebral disc, the nucleus pulposus, which causes pain by stressing the spinal cord or radiating nerves. The traditional open discectomy, or Love's technique, was published by Ross and Love in 1971. Advances in options have produced effective alternatives to traditional discectomy procedures (e.g. microdiscectomy, endoscopic discectomy, and laser discectomy). In conjunction with the traditional discectomy, a laminotomy is often involved to permit access to the intervertebral disc. In this procedure, a small piece of bone (the lamina) is removed from the affected vertebra, allowing the surgeon to better see and access the area of disc herniation.
In the U.S., it has been estimated that the Medicare system spends over $300 million annually on lumbar discectomies.
==Microdiscectomy==
Microdiscectomy is a minimally invasive surgical procedure in which a portion of a herniated nucleus pulpolsus is removed by way of a surgical instrument or laser while using an operating microscope or loupe for magnification.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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