Microdiscectomy
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Microdiscectomy
Microdiscectomy, also called microlumbar discectomy (MLD), is a very common MIS(minimally invasive surgery) decompression procedure performed in patients with a symptomatic lumbar herniated disc. The operation consists of removing the portion of the intervertebral disc that is herniated and compressing a spinal nerve root. The procedure is performed from the back (posterior) with the patient on his or her stomach.
A 1- to 2-cm longitudinal incision is made in the midline of the lower back, directly over the area of the herniated disc. Special retractors and an operating microscope are used to visualize the region of the spine, with minimal or no cutting of the adjacent muscles and soft tissues. After the retractor is in place, an x-ray is used to confirm that the appropriate disc is identified. A small amount of bone of the superior lamina may be removed first to expose the disc herniation. The nerve root and neurologic structures are protected and carefully retracted so that the herniated disc can be removed. Surrounding areas are checked to ensure that no additional disc fragments are remaining.
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