OLIF Surgery Mumbai — Dr. Amit Chugh | Oblique Lateral Interbody Fusion

What is OLIF?

OLIF (Oblique Lateral Interbody Fusion) is a minimally invasive lumbar fusion technique in which the spine is accessed through a small incision on the left flank, approaching the disc obliquely between the aorta and the psoas muscle. This avoids the need to retract the psoas (as in XLIF/DLIF) or enter the spinal canal, making it safer for the lumbar plexus nerves.

OLIF is most commonly performed at L1-L5, with a modified approach (OLIF51) for the L5-S1 level. It can be performed as a standalone interbody procedure or combined with posterior percutaneous pedicle screw fixation (hybrid technique) for optimal stability.

Why Choose OLIF?

No Posterior Muscle Damage

The entire fusion is achieved without touching the back muscles or posterior bony structures — eliminating the "muscle crush" pain of traditional posterior surgery.

Large Cage — Excellent Fusion

Oblique approach allows a significantly larger implant footprint — supporting more bone graft and achieving excellent fusion rates and disc height restoration.

Multi-Level Capability

OLIF can address L1–L5 through a single flank incision — making it ideal for multi-level degenerative disease and correction of lumbar flat-back or kyphosis deformity.

Rapid Recovery

Less muscle trauma = less post-op pain = faster mobilisation. Most patients walk the day of surgery and discharge day 2–3.

Indications for OLIF

Degenerative disc disease at L1–L5 (single or multi-level)
Degenerative spondylolisthesis (Grades I–II)
Lumbar deformity correction (degenerative scoliosis, flat-back)
Adjacent segment disease after prior posterior fusion
Revision cases where posterior approach is scarred

Recovery Timeline

Day 1

Walking with supervision. Flank soreness expected. Diet resumed. No posterior wound pain.

Day 2–3

Discharged home. Walking programme commenced. Lumbar brace for 6 weeks.

Week 6

Brace discontinued. Physiotherapy begins. Return to desk work.

3–6 Months

Fusion confirmed on CT. Full return to activities.

OLIF — Oblique Lateral Interbody Fusion