Overview
An interspinous spacer is a small implant placed between two spinous processes (the bony bumps along the back of the spine) through a small incision. The Superion device used in the Vertiflex procedure is one example. It holds the space open so the canal is less narrowed when you stand and walk.
It is designed for people with moderate lumbar spinal stenosis whose leg pain or heaviness improves when they sit or bend forward.
Already looked into this? See our Vertiflex and MILD information page.
Watch and learn
Video: “Lumbar Spinal Stenosis - Patient Animation” from Globus Medical on YouTube. It loads from youtube-nocookie.com only when you press play. Shown for general education; GSMC did not produce it. Watch on YouTube
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Who may be a candidate
- Moderate lumbar spinal stenosis at one or two levels
- Leg or buttock pain with walking that improves with sitting or leaning forward
- At least six months of nonsurgical care without enough relief
- No significant instability, fractures or severe osteoporosis
Your exam, imaging and overall health decide whether this surgery is appropriate for you.
How it is done
- Usually done as an outpatient procedure with anesthesia or sedation.
- A small incision is made in the back under live X-ray guidance.
- The spacer is inserted between the spinous processes and opened to hold the space.
- The incision is closed; most patients go home the same day.
This procedure is often done on an outpatient basis. Procedures that are appropriate for outpatient care may be performed at GSMC’s surgery center; others are done in a hospital. Your surgeon will explain where your procedure would take place.
Recovery timeline
Walking right away; limit bending and lifting as advised.
Gradual return to normal activities.
Recovery depends on the procedure, your health and how many levels are treated. Your surgeon will give you a written plan.
Risks
Every surgery has risks. Your surgeon will review them with you, including:
- Infection or bleeding
- Device movement or spinous process fracture
- Persistent or returning symptoms
- Need for later surgery
Alternatives to consider
See all nonsurgical options, or ask for a second opinion.
Who performs it
Call 732-202-3000 to confirm which surgeon performs this procedure and where.
Frequently asked questions
Is this the same as MILD?
No. MILD removes thickened ligament through a small portal. A spacer is an implant that holds space open. Both are options for selected stenosis patients.
Can the spacer be removed?
It is designed to stay in place, but it can be removed if needed.
Where is it done?
It is typically an outpatient procedure. Procedures that are appropriate for outpatient care may be performed at GSMC’s surgery center; others are done in a hospital. Call 732-202-3000 for details.
This page is general patient education and does not replace advice from your own clinician. Individual results vary. No outcome can be promised.