Endoscopic Disc Surgery helps reduce the need for spinal fusion surgery

endoscopic spine disc

Minimally invasive spine surgery techniques have tremendously changed the way spine surgery is performed over the last couple of decades. Minimizing the amount of muscle dissection as well as resection of bone, while achieving adequate decompression of the neural structures has been the constant endeavor of the minimally invasive spine surgeons.

endoscopic view lumbar disc and nerve root
Endoscopic view of lumbar disc and nerve root.

The emergence of endoscopic disc surgery in the recent years is revolutionizing the surgical treatment of degenerative spinal disorders, especially in lumbar spine. This has definitely made it possible to avoid a fusion surgery, involving stabilization of spinal segments with implants, in certain situations.

For example, a patient with a recurrent disc prolapse at the same level after a prior laminectomy in the past may end up needing a fusion surgery by the conventional way of treatment. Also, a second conventional micro-discectomy through the scar tissue has higher risk of complications like dural tear, spinal fluid leakage or nerve root injury.

A transforaminal endoscopic discectomy provides the option to remove the prolapsed disc fragment through a different route, avoiding surgery through the scar tissue as well as the need to resect more bone, thereby preventing the need for a stabilization and fusion.

Transforaminal endoscopic discectomy
Transforaminal endoscopic discectomy in a patient with post-laminectomy recurrent disc prolapse.

Another example is a large central disc prolapse in upper lumbar segments or in a primarily narrow spinal canal. As the facet joints might need to be excised (to minimize the risk of neural injury) thereby making the segment unstable, a stabilization with pedicle screws and fusion procedure is usually done in addition to the decompression.

But a transforaminal endoscopic discectomy can be performed without destabilizing the segment and without increasing the risk of neural injury, thereby avoiding the need for a fusion surgery.

Case example

Patients with lumbar canal stenosis needing surgical decompression would many times need significant resection of the bone and facet joints to create adequate space for neural structures, making that segment unstable. Stabilization with implants and fusion is an imperative part of the surgery in such situation. Endoscopic decompression of a stenotic spinal canal is now possible with the advanced instrumentation specially designed for stenosis, without destabilising the spinal segment, thereby avoiding the need for a stabilization and fusion procedure.

Spinal stabilization and fusion surgery has a definite role in management of lumbar degenerative disorders and is inevitable in some situations. But, with minimally invasive techniques and endoscopic spine surgery techniques evolving into reliable non-fusion options for most of the situations that need surgery, the need for a fusion procedure is becoming less frequent.

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About the author

Dr Phani Kiran Surapuraju is a practicing Spine Surgeon in Chennai, India. Trained in one of the top three Medical colleges (Maulana Azad Medical College) in the country. National Board of Examination certified Spine Surgeon. 12 years of Post-MS experience in Orthopaedic Surgery, with 9 years of exclusive experience in Spine Surgery. Special interest in spinal deformity correction and Minimally Invasive Spine Surgery. Fellowships in Spine surgery, including management of complex spinal disorders. (FNB, Univ Of Hong Kong and Univ of Bonn, Germany. )

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