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SPINE

Endoscopic Spine Surgery

Access through a small incision, with a camera, to treat herniated discs and stenosis in selected cases.

endoscopic surgeries
+1,300
Source: Pending validation
of incision
A few millimeters
Source: Pending validation
in selected cases
Same-day discharge
Source: Pending validation
Book an evaluation

Surgical instruments arranged on a sterile field

CRM-PR 35044 · RQE 30580 (Brazilian medical registration)

Illustration of the lumbar spine highlighting the herniated disc
Illustration of the lumbar spine with a herniated disc. Source: Freepik.

What the endoscopic approach is

One camera, an incision of a few millimeters

Endoscopic spine surgery is a minimally invasive technique in which the surgeon reaches the spine through a small incision — generally less than one centimeter — using an endoscope: a thin tube with a camera and a working channel through which the instruments pass. The image is projected onto a monitor, magnified.

The central idea is to reach the problem by passing between the muscles, rather than cutting or widely retracting them. Less disturbance to the surrounding tissue is the reason the technique exists; recovery time depends on the case and is discussed at the appointment.

Minimally invasive refers to the approach, not to the weight of the decision to operate.

Anatomy

Where the camera goes in

The access point depends on where the herniation or the narrowing is: from the side (transforaminal) or from behind (interlaminar).

X-ray-style illustration of the spine and the pelvis seen from behind
X-ray-style illustration of the spine seen from behind. Source: Freepik.
  1. 1

    Access point

    An incision of a few millimeters, beside the lumbar spine. The exact position depends on the level and the technique.

  2. 2

    Disc

    The cushion between two vertebrae; the herniation is the part of it that has moved out of place.

  3. 3

    Compressed root

    The nerve pressed by the herniation — the origin of the pain that radiates down the leg.

  4. 4

    Canal

    The tunnel the nerves pass through; in stenosis, it is narrowed.

MRI of the lumbar spine in sagittal view
MRI of the lumbar spine in sagittal section. Source: Freepik.

For which conditions

Herniated disc and foraminal stenosis, in selected cases

The endoscopic route may be indicated, in selected cases, for a lumbar herniated disc with radiating pain that does not improve with conservative treatment; for foraminal stenosis (narrowing of the opening through which the nerve exits) at specific levels; for some cervical herniations, depending on the technique and the anatomy; and for recurrences, in situations defined during the evaluation.

The symptoms that lead to this evaluation are the same as those of any nerve compression: pain radiating to the leg or arm, tingling or numbness in a specific band, difficulty walking longer distances in cases of stenosis.

What changes in the approach

Open or endoscopic surgery

Both treat the same problem. What changes is the path to it.

Open surgery (microdiscectomy)

  • Small incision, with a microscope, and retraction of the muscles
  • Direct visualization of the nerve and the disc
  • Well-established technique, suitable for many types of herniation
  • Short hospital stay; rehabilitation determines the outcome

Endoscopic

  • Incision of a few millimeters, passing between the muscles
  • Visualization by camera, magnified on the monitor
  • Indicated in selected cases, depending on the type, location and size of the herniation
  • Discharge often on the same day; rehabilitation determines the outcome

The endoscopic route is one more option, not a mandatory replacement. The choice is made during the evaluation, for the problem and for the person.

Illustration of two vertebrae with the intervertebral disc and the nerve root
Illustration of two vertebrae with the intervertebral disc and the nerve root. Source: Freepik.

Two forms of access

Uniportal or biportal?

Within endoscopic surgery there are two ways of reaching the spine. In the uniportal technique, there is a single access: the endoscope carries, through the same tube, the camera and the channel through which the instruments pass. In the biportal technique, there are two small, closely spaced accesses — the camera enters through one, the instruments through the other, which gives the hands a freedom of movement similar to that of conventional surgery.

Both treat the same problems — herniated disc, stenosis, degenerative disease — and neither is superior to the other in all cases. What defines the choice is the type and position of the lesion, the spinal level and the team's experience with each technique. Each one has its own page, with the anatomy of the approach explained.

What the path looks like

Evaluation, tests, indication, procedure

  1. Step 01

    Evaluation

    Conversation and physical examination locate the affected nerve.

  2. Step 02

    Tests

    The MRI shows the type of herniation — protrusion, extrusion, migrated fragment — information that weighs on the choice of technique.

  3. Step 03

    Indication

    Conservative treatment first, except in cases of neurological deficit. If surgery is indicated, the route is defined: endoscopic, microdiscectomy or another.

  4. Step 04

    Procedure and follow-up visit

    Gradual return to activities, strengthening and postural guidance. Follow-up checks pain and function.

Masked surgeon operating a 3D image-guided navigation device in an operating room
Operating room with image-guided navigation. Source: Freepik.

Limits

When the endoscopic route is not indicated

Not every herniation is a candidate for the endoscopic route. Very large herniations or those with fragments migrated far from the disc, extensive stenosis across several levels and cases with spinal instability usually call for another technique — often microdiscectomy or surgery with fixation.

There is also the possibility of recurrence, as with any technique for treating a herniated disc. Follow-up and rehabilitation help reduce this risk, but it is not zero. These limits are part of the conversation at the appointment.

When not to wait

Signs that should not wait for an appointment

These signs call for the emergency room, not an elective appointment.

  • sudden loss of strength in the leg or arm
  • difficulty controlling urine or bowel
  • numbness between the legs
  • severe pain after trauma

Frequently asked questions

  • No. It may be considered in selected cases, depending on the type, location and size of the herniation, as well as the person's anatomy. In other cases, microdiscectomy or another technique may be more appropriate. The choice is made during the evaluation.

Book an evaluation

The appointment serves to understand the condition and define the next step. Not every condition requires surgery.

This channel is not a substitute for emergency care. In an emergency, go to the nearest emergency room.

Reviewed by Dr. Victor Batistela — CRM-PR 35044 · RQE 30580 (Brazilian medical registration)

Published on September 04, 2026 · Reviewed on September 04, 2026 · Educational content; it does not replace a medical appointment.