Minimally Invasive Spine Surgery

Minimally Invasive Spine Surgery

Minimally invasive spine surgery (MISS) is a new and rapidly developing branch of spine surgery in which spine surgery can be done with a small incision, reducing damage to the paraspinal muscles. Conventional spine surgery necessitates extensive muscle dissection and separation of the muscle from its attachments. In MISS, instead of a long incision, surgeons use small openings, sometimes just 1.5 to 2 cm, placed slightly off the midline, often about 2–3 cm from the spinous processes. Through these narrow tubes, an endoscope (a thin camera) is inserted. The muscles are gently separated rather than cut. The surgery still happens. But the path to reach the spine is less traumatic.

The most common complaint is a “slipped disc.” Patients describe it as pain starting in the lower back and shooting down the leg, sometimes up to the heel or outer foot. That’s typically nerve compression in the lumbar region, often at L4-L5 or L5-S1.

Minimally invasive techniques are used for:

  • Slipped disc (disc prolapse)
  • Sciatica with leg pain
  • Spinal canal narrowing (stenosis)
  • Spondylolisthesis (vertebra slipping forward)
  • Degenerative disc disease
  • Some spinal fractures
  • Select tumours or infections

Not every case qualifies for this surgery. Severe deformities or complex multi-level disease may still require open surgery. Our highly experienced neurologists guide patients with minimal access brain & spine surgery in Navi Mumbai at UMC Hospitals only when applicable.

Advantages of a Minimally Invasive Surgery

Here are the key advantages of a minimally invasive spine surgery:

  • Muscle injury is much less, because we don’t retract large muscle groups for long
  • Blood loss is usually lower
  • Pain after surgery tends to be milder
  • Hospital stay is shorter - sometimes same-day discharge in simpler cases
  • Smaller scars (often just a few centimetres)

Patients often come expecting this option. However, only after a complete evaluation are patients selected. You may be considered if:

  • Pain persists despite 6–12 weeks (sometimes longer) of medication and physiotherapy
  • There is nerve compression causing weakness, like difficulty lifting the foot (foot drop)
  • Imaging (MRI) shows a clear, localized problem

However, if there is extensive spinal curvature, multiple-level disease, or instability, we may still recommend a traditional approach. Each case is individual. There’s no one-size decision here.

After anaesthesia, a small incision is made, often just large enough to insert a tubular retractor. This tube gently pushes aside muscle fibres without cutting them.

Through this tube:

  • A camera or microscope gives a magnified view
  • Fine instruments are passed to remove the disc fragment or decompress the nerve

In some procedures - like fusion, small screws (pedicle screws) are placed through tiny incisions using imaging guidance. Everything is visualized on a screen for the surgeon, often with high-definition magnification.

Recovery after a Minimally Invasive Surgery

Recovery varies. But compared to older methods, it’s quicker.

  • Simple discectomy: often discharged the same day or within 24 hours
  • Fusion procedures: usually 2–3 days in hospital

Pain is still present, but usually manageable. Patients with desk jobs may resume light work in 1–2 weeks. For physically demanding work, it may take 4–6 weeks or longer. Full recovery, where you feel completely back to normal, may take around 6 weeks, sometimes more.

Is it completely safe? What are the risks?

No medical procedure or surgery is risk-free. Here are some of the potential risks involved:

  • Infection (though lower compared to open surgery)
  • Bleeding
  • Nerve injury (rare, but possible)
  • Recurrence of disc problem

What matters most is surgical expertise and proper case selection.

Post-surgery care often determines long-term success.

In the first 1–2 weeks:

  • Walking is encouraged - short distances initially
  • Bending and twisting are restricted

Physiotherapy usually begins around 2 weeks post-op. Exercises focus on strengthening core muscles, especially around the lumbar spine. Some patients are given a brace, mostly for comfort rather than necessity. Lifestyle changes after a surgery are an equal part of the recovery process.

At UMC Hospitals, the best neurosurgery hospital in Navi Mumbai, minimally invasive spine procedures are approached with a combination of technology and careful clinical judgment. Advanced imaging systems - like intraoperative 3D navigation- help in the accurate placement of implants, especially in areas close to the spinal cord or nerve roots. Endoscopic and tubular techniques are routinely used for selected cases, particularly for lumbar disc problems and nerve decompression. But what makes the difference is not just the equipment, it is the decision-making, knowing when not to do minimally invasive surgery. Patients are evaluated with imaging, neurological examination, and functional assessment before planning the approach. Post-surgery, rehabilitation is structured and closely monitored, because recovery doesn’t end in the operating room.