“Minimally invasive” is used loosely enough to be almost meaningless. Here is what it actually refers to in this practice — a working corridor made by separating muscle along its fibres rather than stripping it off the spine — and, just as plainly, when an open approach is the better operation.
Minimally invasive surgery is usually explained in terms of the scar. The difference that shapes your recovery is underneath it, in what happens to the muscle.
In a traditional open approach, the muscles running alongside the spine are detached from the bone and held back with retractors for the length of the operation. That exposure is broad and sometimes necessary. But those muscles are what hold you upright, and stripping them, then compressing them under a retractor for two hours, causes injury that has nothing to do with the disc being operated on. A good deal of the pain and stiffness people associate with back surgery comes from that, rather than from the spine itself.
Tubular technique avoids the stripping. A series of progressively larger dilators is passed down to the spine, parting the muscle along its natural fibre planes instead of cutting across them. A tube is then slid over the final dilator and locked in place. The muscle sits around the outside of that tube, undisturbed, for the whole operation.
Live X-ray confirms the exact level before any incision is made. Working through a small corridor means the entry point has to be right the first time — there is no wide exposure to correct into.
Roughly 15–20 mm, placed off the midline rather than directly over the spinous processes.
Dilators of increasing diameter are passed one over the next, each spreading the muscle a little further. The fibres separate rather than tear — see the figure below.
The working tube passes over the final dilator and is secured to a table-mounted arm, holding the corridor open without anyone needing to hold a retractor.
Under a microscope or endoscope, through the tube: bone is removed to decompress the nerve, disc fragments are taken out, and hardware is placed if the level is being fused.
The tube is withdrawn and the muscle falls back into place on its own, because it was never detached. Closure is typically a deep suture and skin adhesive.
Tubular retractor in position
Suggested: cross-section through the lumbar spine with the tubular retractor docked on the lamina, showing the paraspinal muscle parted around the tube rather than cut. Fig. 02 above makes this argument schematically; this slot is for the photorealistic anatomical view beside it.
The operating microscope
The scope over the field, draped, angled down the tube. Either an in-theatre photograph from one of Dr. Zaidi's own lists or licensed equipment photography — not an anatomical image, so stock is defensible here in a way it is not for anatomy.
The view down the tube
Down-the-barrel view of the working channel with the lamina at the bottom. This is the image that makes the corridor real to a patient — it is the surgeon's actual field of view, and nothing else on the page substitutes for it.
The two approaches differ in how the spine is reached, not in what the operation is trying to achieve. A fusion is a fusion either way; the corridor to it is what changes, and with it the amount of muscle disturbed on the way in. Both are performed in this practice.
Figures are general ranges from the surgical literature and vary considerably by procedure, number of levels, and individual health. Comparative studies of tubular versus open decompression generally report less blood loss, less early post-operative pain, and shorter hospital stays with tubular technique, with decompression quality and longer-term outcomes broadly similar. The advantage is concentrated in the first weeks of recovery.
The decompression performed through a tube is the same decompression performed open. The nerve is freed to the same extent, the same disc material comes out, and the same amount of bone is removed. What changes is how much collateral damage is done reaching it.
One clarification, since these terms circulate: there is no laser involved, nothing is dissolved, and the disc is not “vaporised”. Those are marketing words. The instruments used through a tube are the same instruments used in an open decompression.
MIS is not a strictly better technique that open surgery falls short of — it is a narrower corridor, and a narrower corridor is a disadvantage when the problem is broad. Deformity correction across many levels, revision surgery through established scar tissue, and reconstructions needing wide access are all cases where direct exposure lets the operation be done properly rather than only through a smaller opening.
The reverse holds just as often. A single-level discectomy or a one-level fusion in a patient with suitable anatomy gains very little from a 5-inch incision, and pays for it in muscle stripped off the spine and weeks of recovery.
Where the anatomy is distorted enough that direct visualisation is safer, an open approach is the more conservative decision, and it is the one Dr. Zaidi will recommend.
Before any of the above: most patients seen in this clinic never reach an operating room. It is the thing patients mention most often.
Very personable. Very matter of fact. Not aggressive with treatment plan; starts slow in order to try all options to avoid surgery.Kaye M. · Google review
As someone who has undergone back surgery before, I was in a panic. Dr. Zaidi worked with me to assuage my fears, prescribed physical therapy and a round of medicine, which worked wonders.Matt T. · Google review
Seeing Dr Zaidi for a couple of years now for a neck problem. He’s been very knowledgeable, has presented my options clearly, and has been supportive of conservative care.Chris C. · Google review
General ranges from the surgical literature, not guarantees. Recovery varies with the procedure performed, the number of levels, your overall health, and how closely post-operative guidance is followed. Nerve symptoms present for a long time before surgery can take months to settle regardless of the approach used.
Dr. Zaidi performed my microdiscectomy on my far lateral herniation. He is very skilled and was so kind before, during, and after my surgery. Three months post op and I am back to my old self.Tiffany B. · Google review
I had the lower back microdiscectomy surgery. After so much pain I had because of herniated disc leading to sciatica in my leg, he did a magic. Thank you doctor.Aizirek Z. · Google review
Quick recovery and minimal scar on back surgery, also very polite and easy to explain and understand.Verified patient · Google review
Verbatim from public Google reviews, shown with first name and last initial. Individual experiences, not a guarantee of outcome. More patient reviews →