Spinal decompression is a commonly performed surgery that relieves pressure on the spinal cord or nerve roots by removing whatever is compressing them: disc material, bone, or thickened ligament. It just addresses nerve compression, not the underlying wear and tear, so its main effect is relief of nerve symptoms like sciatica or neurogenic claudication.
This procedure can be done as traditional open / tubular / endoscopic procedure depending on the patient factors/ levels of involvement / surgical experience of the surgeon
| Procedure | What is done | Typically used for |
| Microdiscectomy
Fig 1 |
Small incision, operating microscope; the herniated fragment pressing on the nerve is removed | Lumbar disc prolapse with sciatica |
| Laminotomy / laminectomy
Fig 2 |
Part or all of the lamina (roof of the canal) is removed, along with thickened ligament, to open space | Lumbar or cervical stenosis |
| Foraminotomy | The nerve’s exit channel is widened | Nerve root compression from bone or disc |
| Endoscopic decompression | Same aims achieved through a very small tube or scope | Selected disc or stenosis cases |

MICROLUMBAR DISCECTOMY

LAMINECTOMY