Lumbar Microdiscectomy

Lumbar microdiscectomy is an operation on the lumbar spine, which is performed by utilizing a surgical microscope and microsurgical techniques. A microdiscectomy requires only a very small incision and will remove only that portion of your ruptured disc which is “pinching” one or more spinal nerve roots. The recovery time for this particular surgery is usually much less than is required for traditional lumbar surgery.

Lumbar microdiscectomy is usually recommended only when specific conditions are met. In general, surgery is recommended when a ruptured disc is pinching a spinal nerve root(s) and you have:

Leg pain which limits your normal daily activities
Weakness in your leg(s) or feet
Numbness in your extremities
Impaired bowel and/or bladder function

In the operating room, a lumbar microdiscectomy begins with a small incision in your lower back. Through this opening, your surgeon will insert microsurgical instruments. Because the work is viewed through a microscope, this approach requires a relatively small incision.

Guided by diagnostic studies, your surgeon will remove a small portion of bony material from the back of your vertebra. Once this material is removed, the surgeon can locate the exact area where the nerve root is being pinched.

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Once the “pinched” nerve is located, the extent of the pressure on the nerve can be determined. Using microsurgical procedures, your surgeon will remove the ruptured portion of the disc and any disc fragments which have broken off from the main disc. The amount of work required to complete your microdiscectomy will depend in part on the number of disc fragments present and the difficulty presented in finding and removing them.

The operation is completed when each layer of the incision is closed with suture material (stitches) or surgical staples. If the outer incision is closed with staples or non-absorbable sutures, they will have to be removed after the incision has healed.

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