Endoscopic discectomy is an operation to remove the piece of a slipped (herniated) disc that is pressing on a spinal nerve, using an endoscope through a cut of roughly 8 mm. It is meant for people whose sciatica or arm pain from a slip disc has not settled with non-surgical treatment, and in Lahore it is usually done with a same-day or next-day discharge.
It is one specific operation within the wider field of endoscopic spine surgery. This page explains what is removed, how the surgeon chooses the route, how it compares with microdiscectomy, and what to expect when going back to work.
A spinal disc has a tough outer ring and a soft jelly-like centre. In a slip disc, some of that centre breaks through the ring and presses on a nerve root. Endoscopic discectomy removes only the loose, herniated fragment and any obviously loose material near it. The rest of the healthy disc is left in place, so the disc still works as a cushion. It does not replace the disc and is not a fusion.
The typical candidate has leg pain worse than back pain, an MRI showing a disc fragment that clearly matches the painful leg, and symptoms that have not improved enough after around 6 to 12 weeks of medicines and physiotherapy. Surgery may be advised sooner if there is significant or worsening weakness.
Endoscopic discectomy may not be the best option if the fragment has migrated a long way up or down the canal, if it is hard and calcified, if there is narrowing from bone as well as disc, or if the segment is unstable. In these cases a microdiscectomy, decompression or fixation may be safer. Anyone with numbness around the saddle area or new bladder problems should go to the emergency department straight away, as this needs urgent surgery whatever the technique.
Transforaminal (from the side): the endoscope enters through the natural opening where the nerve exits, usually from a small cut several centimetres from the midline. It is useful for disc fragments in or beyond the foramen and at many lumbar levels, and can often be done under local anaesthesia with sedation. At the lowest level (L5-S1) the pelvic bone can block this path in some people.
Interlaminar (from the back): the endoscope enters through the gap between two vertebrae, close to the midline. It is often chosen for central or paracentral herniations and at L5-S1, where the gap is naturally wider. It is usually done under general anaesthesia.
The choice depends on where the fragment sits on your MRI, the level, your body shape, and your general health. You will be told which route is planned and why.
A recent MRI is essential, because disc fragments can shrink or move over time. If your scan is several months old, a repeat may be requested. Standing or flexion-extension X-rays may be needed to rule out instability. Blood tests, an ECG and an anaesthetic review are usually done. Blood thinners may need to be stopped a few days before, on medical advice.
When done under local anaesthesia, some patients notice their leg pain ease on the operating table, though this varies.
Microdiscectomy removes the same disc fragment through a slightly larger open incision, usually 2 to 3 cm, using an operating microscope. Both operations aim to free the nerve, and studies generally show similar relief of leg pain in the longer term. Differences are mainly in the early recovery:
Neither is "right" for everyone. The choice is guided by your MRI and the surgeon's judgement.
Numbness and tingling usually recover more slowly than pain, sometimes over several months.
The most important specific risk is recurrent disc herniation: because most of the disc is left in place, a new piece can break out through the same tear. This can happen after any discectomy, endoscopic or open, and is most likely in the first few months. If it happens, it may settle again with conservative care or may need a repeat operation. Other risks include temporary leg tingling or burning (more common after the transforaminal route), dural tear, nerve injury, infection, bleeding, incomplete relief, and occasionally converting to an open operation.
Open microdiscectomy or a broader decompression is usually preferred for large calcified fragments, fragments that have migrated far from the disc, combined bony narrowing, or repeated recurrences with instability, where fixation may be considered. See the spine surgery overview for these options.
No. Only the herniated fragment and loose material are removed. The remaining disc is kept to preserve movement and cushioning.
A minority of patients get a recurrence at the same level, most often in the first months. Following lifting advice and building core strength may reduce the risk, though it cannot be removed completely.
The operation is mainly for leg or arm pain from a trapped nerve. Some back pain may improve, but back pain from worn discs or joints is less predictable.
Many patients do, especially after surgery under local anaesthesia. Others stay one night. It depends on your recovery, pain control and home support.
Book an appointment with your MRI. If non-surgical care has not yet been tried properly, that will usually be advised first.
Dr. Khawar Anwar is a Consultant Neurosurgeon & Spine Surgeon at PINS / Lahore General Hospital, Lahore, with over 10 years of experience in brain and spine surgery. He sees patients in Lahore and Gujranwala and focuses on minimally invasive and endoscopic techniques where they are suitable for the patient.
See the full list on the certifications page or read more about Dr. Khawar Anwar.
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To book, call or WhatsApp 0333-7574732 and tell us which clinic and day suits you. Please bring your MRI or CT scan (films and CD), reports and a list of your current medicines to the consultation. For sudden weakness, loss of bladder or bowel control, a sudden severe headache or a head or spine injury, go to the nearest emergency department first.