Minimally Invasive Lumbar Decompression (MILD) is a keyhole surgical technique that relieves nerve compression in lumbar canal stenosis through tiny incisions. This procedure preserves the back muscles and bony structures, ensuring rapid recovery and minimal post-operative pain.
Key Advantages
What is Minimally Invasive Lumbar Decompression?
In this procedure, the surgeon uses a tubular retractor system to access the spinal canal through a very small incision. The thickened ligament and small portions of bone causing nerve compression are removed, widening the spinal canal and relieving nerve pressure. Unlike traditional open surgery, the back muscles are simply pushed aside rather than cut and detached.
When is it Recommended?
- Lumbar canal stenosis causing neurogenic claudication (leg pain on walking)
- Sciatica from lumbar spinal stenosis
- Nerve compression at one or multiple levels
- Elderly patients or those with other medical conditions who need a less invasive approach
- Failed conservative treatment for lumbar stenosis
Procedure Details
• 1–2 small skin incisions (approximately 1 inch each) • Tubular retractor inserted through the incision • Microscope or endoscope used for visualization • Thickened ligamentum flavum and bone spurs removed • Spinal canal widened — nerve roots decompressed • Incision closed with sutures • Procedure duration: 45–90 minutes per level
Recovery
• Patient walks same day of surgery • Discharge: Day 1–2 • Return to light activities: 1–2 weeks • Return to physical work: 4–6 weeks • No significant restrictions post-procedure • Minimal post-operative back pain