The Lumbar Disc Microsurgery Procedure
Microscopic Surgery at the disc level is the mainstay of the minimally invasive lumbar surgery. A small incision is localized with X-ray control over the affected level. A small tubular retractor is guided down on the lamina without stripping or injury to the important musculature of the spine. Once the retractor is in position and verified with X-ray, a small burr and surgical instruments are used to make a window or laminotomy over the nerve root. Portions of the lamina and the adjacent facet may be involved in the removal to fully expose the injured nerve root and dura overlying the passing nerve roots.
This may be named a laminotomy, or a foraminotomy if more lateral portions of the bone are removed. Also a discectomy may be done with fragments of the injured disc may be removed to take all pressure off of the nerve root.