Endoscopy Surgery

Spinal endoscopy, also called endoscopic spine surgery, is a minimally invasive technique used to diagnose and treat problems within the spine — such as a herniated disc or a pinched nerve — through a very small incision, often less than a centimetre wide.

A thin tube called an endoscope, fitted with a high-definition camera and a light source, is guided directly to the affected area of the spine. The camera sends magnified, real-time images to a monitor, allowing the surgeon to see the herniated disc, compressed nerve, or narrowed spinal canal clearly and work on it using specialised micro-instruments passed through the same tube.

Because the incision is so small and the surrounding muscles are gently separated rather than cut, spinal endoscopy typically results in less pain, less blood loss, and a faster recovery compared with traditional open spine surgery — often allowing patients to go home the same day. Many patients are able to resume light daily activities within days rather than weeks, which is one of the main reasons this technique has become increasingly popular among both surgeons and patients seeking to avoid prolonged downtime.

Types of Spinal Endoscopy

Spinal endoscopy techniques are generally classified by the approach used to reach the spine and the region being treated. Each approach is selected based on where the problem is located relative to the spinal canal and nerve roots, as well as the specific anatomy of the patient.

Interlaminar Endoscopic Discectomy

accesses the disc through the natural gap between two vertebrae (the lamina) commonly used for central or lower lumbar disc herniations.

Transforaminal Endoscopic Discectomy

accesses the disc from the side through the natural opening (foramen) where the nerve root exits the spine often used for disc herniations affecting a specific nerve root.

Cervical Endoscopic Discectomy/Foraminotomy

used for herniated discs or nerve compression in the neck (cervical spine).

Endoscopic Foraminotomy

widens the nerve exit opening to relieve nerve compression without removing disc material.

Endoscopic Decompression for Spinal Stenosis

removes bone or ligament tissue narrowing the spinal canal, relieving pressure on the nerves or spinal cord.

How the Procedure Is Performed?

Spinal endoscopy generally follows these steps:

Positioning:

You are positioned face-down or on your side depending on the area of the spine being treated.

Anesthesia:

Local anesthesia with sedation, spinal anesthesia or general anesthesia is given depending on the specific procedure and your surgeon’s preference.

Imaging guidance:

Live X-ray (fluoroscopy) is used to precisely locate the affected disc or nerve level and guide the incision site.

Insertion:

A needle followed by a small tubular endoscope, usually 4–8 mm wide, is gently guided to the target area through a single small incision.

Visualization and treatment:

The surgeon views the herniated disc, compressed nerve or narrowed canal on a monitor and uses micro-instruments passed through the endoscope to remove disc material, decompress the nerve or widen the spinal canal as needed.

Closure:

The endoscope is withdrawn and the tiny incision is closed with a single stitch or adhesive strip.

Recovery:

You are monitored briefly in a recovery area before being allowed to walk and in most cases go home the same day.

What Spinal Endoscopy Is Used to Test For?

Spinal endoscopy is recommended after clinical examination and imaging (such as MRI) suggest a structural problem in the spine. Because the surgeon can directly visualise the affected structures in real time, endoscopy also serves a diagnostic role in certain cases where imaging findings do not fully explain a patient’s symptoms. It is used to:

• Directly visualise a herniated or bulging disc pressing on a nerve.
• Confirm the exact source of nerve compression when symptoms and imaging need closer correlation.
• Assess and treat narrowing of the spinal canal or nerve exit openings.
• Remove disc fragments or scar tissue causing persistent nerve irritation.
• Relieve pressure on a nerve root causing pain radiating into the arm or leg.

Conditions Spinal Endoscopy Can Detect and Treat?

Spinal endoscopy is commonly used to diagnose and treat conditions such as:

• Lumbar disc herniation (slipped disc in the lower back).
• Cervical disc herniation (slipped disc in the neck).
• Sciatica caused by nerve root compression.
• Lumbar spinal stenosis (narrowing of the spinal canal).
• Foraminal stenosis (narrowing of the nerve exit opening).
• Recurrent disc herniation after previous spine surgery.
• Nerve root compression causing radiating pain, numbness, or weakness in the arms or legs.

Because the technique is minimally disruptive to surrounding tissue, it is often considered a suitable option for patients who have already undergone one spine surgery and are experiencing a recurrence, since it avoids cutting through previously operated tissue planes as extensively as open revision surgery would.

How to Prepare for Spinal Endoscopy?

Preparation helps ensure the procedure goes smoothly. General guidance includes:

Imaging review:

Your surgeon will review your MRI or CT scan beforehand to plan the exact approach.

Fasting:

Avoid food and liquids for 6–8 hours before the procedure, as instructed.

Medication review:

Inform your doctor about all medications and supplements, especially blood thinners, as these may need to be paused beforehand.

Medical history:

Share any history of allergies, bleeding disorders, or previous reactions to anesthesia.

Pre-procedure tests:

Blood tests and a fitness assessment may be required, depending on your age and health status.

Arrange transport:

Since sedation or anesthesia is used, arrange for someone to drive you home afterward.

Side Effects and Risks of Spinal Endoscopy?

Spinal endoscopy is considered a safe procedure with a low complication rate, but as with any spine procedure, some side effects and risks are possible:

• Mild soreness, swelling or bruising at the incision site.
• Temporary numbness, tingling or weakness near the treat
• Grogginess or nausea from sedation or anesthesia nerve.
• Minor bleeding at the incision site.
• Rarely infection at the surgical site.
• A small chance that symptoms may not fully resolve or may recur requiring further treatment.

Most side effects are mild and resolve within a few days. Contact your doctor immediately if you experience severe or worsening pain, high fever, persistent leakage of clear fluid from the incision, or new weakness or loss of bladder or bowel control. Being aware of these warning signs allows any complication to be identified and addressed early, which generally leads to better outcomes.