Spine Surgery
MIS-TLIF (Minimally Invasive Spinal Fusion)
MIS-TLIF (minimally invasive transforaminal lumbar interbody fusion) is a keyhole spinal fusion technique used to stabilise the spine and relieve nerve compression in select degenerative or unstable lumbar spine conditions.

Ready to talk?
Book a mis-tlif (minimally invasive spinal fusion) consultation with Dr. Nirmal Patil, MS (Ortho) in Pimpri-Chinchwad.
How It's Performed
Working through small incisions and using imaging guidance, the surgeon removes the source of nerve compression, places an interbody spacer to restore disc height, and secures the segment with screws and rods to achieve fusion over time.
What happens, step by step
- Assessment: examination, MRI and standing X-rays (including flexion-extension) assess nerve compression and stability.
- Anaesthesia: general anaesthesia with neuro-monitoring where appropriate.
- Access: small incisions and tubular retractors provide access to the spine with less muscle damage.
- Decompression and cage: the damaged disc is removed, the nerve freed and a cage with bone graft placed in the disc space.
- Stabilisation: screws and rods are placed through small incisions so the segment fuses into one solid bone.
Conditions Treated
- — Spondylolisthesis
- — Degenerative disc disease with instability
- — Selected cases of recurrent disc herniation
- — Lumbar spinal instability
Benefits
- — Smaller incisions than open fusion surgery
- — Reduced muscle disruption
- — Aims for a stable, pain-free spine at the treated level
- — Structured recovery pathway
Who May Need This Treatment
- — A slipped vertebra (spondylolisthesis) causing back and leg pain
- — Nerve compression with instability of a spinal segment
- — Degenerative disc disease with instability, not helped by non-surgical care
- — Recurrent disc herniation at a level that needs stabilising
Recovery
Recovery involves early mobilisation followed by a structured rehabilitation programme, with bone fusion occurring gradually over months as guided by the surgeon's follow-up imaging.
| When | What to expect |
|---|---|
| Day 1-3 | Walking with assistance; short hospital stay |
| Weeks 2-6 | Light activity; avoid bending, twisting and heavy lifting |
| Months 2-3 | Return to desk work; physiotherapy for core strength |
| Months 6-12 | Bone fusion consolidates; follow-up X-rays confirm it |
Typical recovery timeline — individual recovery varies
Is This Right For You?
Not every patient with spondylolisthesis or a related condition needs mis-tlif (minimally invasive spinal fusion). Dr. Nirmal Patil, MS (Ortho) reviews your symptoms, clinical examination, and imaging to confirm whether this is the right approach for you, or whether conservative treatment is more appropriate.
Alternatives to Consider First
Physiotherapy, core strengthening, medication and injections are tried first, and many low-grade slips never need surgery. Decompression alone may be enough when the segment is stable.
Risks & Considerations
Risks include infection, nerve injury, dural tear, implant problems, failure of the bone to fuse and adjacent-level degeneration over time. Smoking and uncontrolled diabetes raise the risk and should be addressed beforehand.
Questions to Ask at Your Consultation
- — Do I really need fusion, or would decompression alone work?
- — How many levels need to be fused?
- — What are my activity restrictions and for how long?
MIS-TLIF (Minimally Invasive Spinal Fusion) in Wakad, Pune
Dr. Nirmal Patil, MS (Ortho) has 16 years of experience in spine and orthopaedic care and consults at Precision Ortho Spine & Rehab Clinic, Vishnu Dev Nagar, Wakad, Pune. Patients travel from Wakad, Hinjewadi, Baner, Pimple Saudagar, Punawale, Ravet and across Pimpri-Chinchwad. Every recommendation begins with a proper examination and imaging review, and you are given a clear explanation of your options, including non-surgical ones, before any decision is made.
Frequently Asked Questions
What is MIS-TLIF surgery?
It stands for minimally invasive transforaminal lumbar interbody fusion — a keyhole technique that removes the source of nerve compression and fuses a spinal segment using screws, rods, and an interbody spacer.
Who needs spinal fusion surgery?
Fusion is generally considered for conditions involving spinal instability, such as spondylolisthesis, or when decompression alone would leave the spine unstable — your surgeon will assess whether this applies to you.
How long does it take for spinal fusion to heal?
Bone fusion typically develops gradually over several months, monitored through follow-up visits and imaging, even though initial recovery and return to activity often happens sooner.
Is MIS-TLIF safer than open spinal fusion?
The minimally invasive approach generally involves smaller incisions and less muscle disruption than open fusion, which may reduce blood loss and support faster initial recovery in suitable candidates — but it carries the same general surgical risks as any spine surgery.
Will I lose flexibility after spinal fusion?
Fusion eliminates motion at the treated spinal segment, but adjacent segments continue to move — most patients don't notice a significant change in overall flexibility for day-to-day activities.
How long does spinal fusion take to heal?
Walking and light activity return within days to weeks, but the bone takes roughly 6 to 12 months to fuse fully.
Will I lose flexibility after fusion?
A single-level fusion has a modest effect on overall spinal flexibility since the rest of the spine compensates.
How much does MIS-TLIF cost in Pune?
Cost depends on the number of levels, implants, hospital and room, and insurance. An itemised estimate is provided after reviewing your MRI and X-rays.
Discuss your case with Dr. Nirmal Patil, MS (Ortho)
Every case is different. Book a consultation to review your symptoms and imaging.
