Dr. Charla Fischer, a board‑certified orthopedic spine surgeon in New York City, performs both lumbar minimally invasive microdiscectomy and lumbar laminectomy. They are often mentioned together, but they treat different problems. Here is how to tell them apart.
The Short Answer
A microdiscectomy treats a herniated disc pressing on a nerve. A laminectomy treats spinal stenosis, a narrowing of the spinal canal. Both are decompression operations, meaning both take pressure off nerves, but they remove different tissue.
What a Microdiscectomy Does
As Dr. Fischer’s microdiscectomy page explains, a small amount of bone is removed to reach the spinal canal, and then the herniated part of the disc and the soft tissue around the nerve are removed. The rest of the disc stays in place to preserve motion and stability. It is usually considered for a herniated disc that hasn’t improved after a trial of medication and physical therapy.
What a Laminectomy Does
As Dr. Fischer’s lumbar laminectomy page explains, part or all of the lamina (the back part of the spine) is removed, along with the overgrown soft tissue that is pressing on the nerves. It is used for spinal stenosis that causes back pain, leg pain, weakness or changes in sensation.
In both operations, the bone that is removed isn’t important for the spine’s structural support, so removing it doesn’t cause instability.
Microdiscectomy vs. Laminectomy at a Glance
| Microdiscectomy | Laminectomy | |
|---|---|---|
| Treats | A herniated disc pressing on a nerve | Spinal stenosis (a narrowed canal) |
| What’s removed | A small amount of bone for access, then the herniated disc material | Part or all of the lamina and the overgrown tissue |
| Operating time | About 30–60 minutes | About 30–90 minutes for one level |
| Going home | Same day in almost all cases | Often same day; multi-level may mean 1–2 nights |
| Back to work | Many return after about 2 weeks | Non-strenuous work often within a month (without fusion) |
Which One Do You Need?
The choice depends on what your MRI and exam show is pressing on the nerve. A disc herniation pinching a single nerve root often points to a microdiscectomy. Narrowing of the canal from thickened ligaments and other age-related changes often points to a laminectomy. Some people have both problems, and the operation is planned around everything that is compressing the nerves. Dr. Fischer’s posts on microdiscectomy recovery and laminectomy recovery cover what the weeks after each surgery look like.
Risks
- Microdiscectomy: rarely, a tear in the dura (the covering around the nerves); a disc can herniate again at the same level, and a second herniation may need another operation.
- Laminectomy: a rare dural tear; infection in less than 1% of cases; a very rare blood collection (hematoma); and continued wear and tear at nearby levels over time.
How to Get Help
If leg pain, numbness or trouble walking hasn’t improved with non-surgical care, a spine specialist can review your imaging and explain which operation, if any, fits your situation. Dr. Fischer sees patients at NYU Langone Center for Musculoskeletal Care, 333 East 38th Street, 6th Floor (646-501-7200), and NYU Langone Madison Orthopedic Surgery Associates, 145 East 32nd Street, 4th Floor (212-427-3986). Contact Dr. Fischer to schedule a consultation.
Sources: Hospital for Special Surgery, Microdiscectomy (updated Feb 2026); Hospital for Special Surgery, Lumbar Laminectomy (updated June 2025); Cleveland Clinic, Laminectomy (reviewed Dec 2023); Dr. Fischer’s microdiscectomy and lumbar laminectomy pages.
Frequently Asked Questions
Is a microdiscectomy the same as a laminectomy?
No. A microdiscectomy removes the part of a herniated disc that is pressing on a nerve, after removing a small amount of bone for access. A laminectomy removes part or all of the lamina and overgrown tissue to relieve spinal stenosis.
Which surgery has the faster recovery?
Both usually allow a fairly quick return to daily life. After a microdiscectomy, patients go home the same day in almost all cases and many return to work after about two weeks. After a laminectomy without fusion, many return to non-strenuous work within a month.
Can I have both at the same time?
Some people have both a disc herniation and stenosis. In that case the operation is planned around everything that is compressing the nerves, and your surgeon will explain what that involves.
Do either of these surgeries require a fusion?
Usually not. In both operations the bone removed isn’t important for the spine’s structural support, so removing it doesn’t cause instability. A fusion is considered separately when the spine is unstable.
How do I know which one I need?
The choice depends on what your MRI and exam show is pressing on the nerve. A disc herniation pinching one nerve root often points to a microdiscectomy, and narrowing of the canal often points to a laminectomy.