Dr. Charla Fischer, a board‑certified orthopedic spine surgeon in New York City, performs both minimally invasive microdiscectomy and endoscopic spine surgery for herniated discs. Both aim to relieve a pinched nerve. Here is how they differ and what the research shows.
What Both Operations Do
Both remove the part of a herniated disc that is pressing on a nerve, and both are minimally invasive. They are usually considered when a herniated disc hasn’t improved after a trial of medication and physical therapy. The difference is how the surgeon reaches and sees the disc.
Microdiscectomy
As Dr. Fischer’s microdiscectomy page explains, a small amount of bone is removed to reach the spinal canal, and the herniated disc and surrounding soft tissue are removed. The rest of the disc stays in place. The surgeon works through a small incision using a surgical microscope or magnifying loupes. The operation typically takes 30 to 60 minutes, and patients go home the same day in almost all cases.
Endoscopic Discectomy
In endoscopic surgery, the surgeon works through even smaller incisions with a camera. In the unilateral biportal technique (UBES) described in Dr. Fischer’s UBES post, two incisions of less than 1 cm are made on the same side of the spine, one for the camera and one for the instruments. It is almost always outpatient.
Endoscopic Discectomy vs. Microdiscectomy at a Glance
| Microdiscectomy | Endoscopic discectomy | |
|---|---|---|
| How the surgeon sees | Surgical microscope or loupes | A camera inside the spine |
| Incision | Small | Smaller (under 1 cm per incision in UBES) |
| Muscle | Some muscle retraction | No muscle retraction |
| Going home | Same day in almost all cases | Same day in the large majority of cases |
| Leg pain and disability at 12 months | Improved | Improved, similar to microdiscectomy |
What the Research Shows
In a randomized clinical trial comparing the two, leg pain and disability improved significantly in both groups, with no significant difference between them at 12 months. The endoscopic group had significantly less low back pain in the first weeks after surgery, which the authors attributed to less damage to healthy tissue, less bleeding and no muscle retraction. Complications and reoperations were few in both groups. The authors concluded that endoscopic discectomy is a safe and efficient alternative to microdiscectomy.
Which One Is Right for You?
Not every disc herniation is suited to an endoscopic approach, and not everyone is a candidate. Dr. Fischer recommends the technique after reviewing where the herniation is, your imaging and your overall health. You can read more about recovery in her posts on microdiscectomy recovery and endoscopic spine surgery recovery.
Risks
Both operations carry the risks of any spine surgery, including infection, bleeding and nerve damage. With either technique, a disc can herniate again at the same level, and a second herniation may need another operation. Dr. Fischer reviews the risks with each patient before surgery.
How to Get Help
If leg pain from a herniated disc hasn’t improved with treatment, a spine specialist can tell you whether a microdiscectomy or an endoscopic approach 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: Meyer G, et al. Percutaneous Endoscopic Lumbar Discectomy Versus Microdiscectomy for the Treatment of Lumbar Disc Herniation: A Randomized Clinical Trial. Int J Spine Surg. 2020; Hospital for Special Surgery, Microdiscectomy (updated Feb 2026); University of Utah Health, What to Expect After Endoscopic Spine Surgery; Dr. Fischer’s microdiscectomy page and UBES post.
Frequently Asked Questions
Is endoscopic discectomy better than microdiscectomy?
In a randomized clinical trial, leg pain and disability improved significantly with both, with no significant difference at 12 months. The endoscopic group had less low back pain in the first weeks after surgery.
What is the difference between endoscopic discectomy and microdiscectomy?
Both remove herniated disc material pressing on a nerve. Microdiscectomy uses a surgical microscope or loupes through a small incision, with some muscle retraction. Endoscopic discectomy uses a camera through even smaller incisions, without muscle retraction.
Do both procedures allow same-day discharge?
Yes. Patients go home the same day in almost all microdiscectomy cases, and endoscopic spine surgery is outpatient in the large majority of cases.
Can a disc herniate again after either surgery?
Yes. With either technique, a disc can herniate again at the same level, and a second herniation may need another operation.
Who is a candidate for endoscopic discectomy?
Not every disc herniation is suited to an endoscopic approach. A spine surgeon recommends the technique after reviewing where the herniation is, your imaging and your overall health.