Laminotomy versus Laminectomy

Laminotomy and Laminectomy
An easy way to learn the difference between these terms is to remember 'ectomy" means to remove. For example, an appendectomy is the removal of the appendix. Laminotomy and laminectomy are surgical procedures involving the lamina; a thin bony layer covering the spinal canal. The lamina may obstruct the surgeon's view of an intervertebral disc. Laminotomy is the partial removal of the lamina. Laminectomy is the complete removal of the lamina.

Laminotomy: Lamina Partially Removed

Laminectomy: Lamina Entirely Removed

If an intervertebral disc has herniated the surgeon may need to remove pieces of the disc compressing nerve roots. With part or all of the lamina removed, the surgeon has a better view of the disc. These procedures also provide greater access to the spinal canal and other parts of the spinal anatomy.

This article is an excerpt from a book titled Save Your Aching Back and Neck, A Patient's Guide (Second Edition, May 2002, completely revised).