In brief
- Bending forward relieves stenosis because flexion opens the canal. The implant holds the segment in slight flexion permanently, an indirect decompression.
- Walking begins the day of the procedure and increases daily. It is the single most important part of your recovery.
- Nothing over 10 pounds, and no bending forward, twisting, or arching backward, for 6 weeks.
- Sudden, sharp, focal back pain after a fall, hard cough, or twist is not ordinary soreness. Report it.
Understanding your diagnosis
Lumbar spinal stenosis is narrowing of the spinal canal and the nerve openings in the low back, caused by thickened ligament, enlarged arthritic facet joints, disc bulging, and bone spurs. The characteristic symptom is neurogenic claudication: leg pain, heaviness, cramping, or numbness that comes on with standing and walking and is relieved by sitting or leaning forward. The reason bending forward helps is purely mechanical: flexion opens the canal and the nerve openings, while extension closes them. That observation is the entire basis for this treatment.
The treatment
A small titanium implant is placed between the bony spinous processes at the affected level. It holds that segment in a slight degree of flexion, which increases the size of the spinal canal and the nerve openings, an indirect decompression achieved without removing bone, ligament, or disc.
Devices of this class fall into two types: motion-preserving spacers, which act only as an extension blocker, and interspinous-interlaminar fusion devices, which additionally grip the bone and carry graft material so the segment fuses. We select based on whether your segment also requires stabilization. The specific implant used in your case is identified on your operative report and implant card.
Our approach
The implant is placed through a small incision under live X-ray. Tissue is dilated rather than cut, and the paraspinal muscles are not stripped off the spine. The lamina, facet joints, and ligament are left intact, which is what distinguishes the procedure from an open laminectomy. When a fusion device is used, graft material is packed into the implant and the bone surfaces prepared so the segment fuses over the following months.
Before your procedure
Medication holds
Our office will tell you which medications to hold and for how long, following the same blood-thinner guidelines as our other procedures.
Fasting, sedation, and your ride home
- If you are receiving sedation, nothing to eat or drink for six hours before your appointment. Essential morning medications may be taken with a small sip of water only.
- We offer light or deep sedation. The level is decided by the physician and anesthesia team based on the procedure and clinical need.
- Any patient receiving sedation must be accompanied by a responsible adult driver to take them home.
Where to go
Procedures are performed at one of three facilities: our clinic at 1925 Hospital Place, ACOM at 6449 Central Park Blvd, or Hendrick South at 6399 Directors Pkwy, Suite 100. Your appointment paperwork tells you which one. Please arrive early for registration and pre-procedure preparation.
Procedure day
- Performed under live X-ray (fluoroscopy) through a small incision.
- Muscle-sparing: tissue is dilated, not cut and stripped away.
- No bone or ligament is removed; the canal is decompressed indirectly.
- Anesthesia is typically sedation with local, or a brief general anesthetic.
- The procedure takes 30 to 60 minutes and most patients go home the same day.
Benefits
- Relief of leg pain with improved standing and walking tolerance.
- Substantially less tissue disruption than open decompression or fusion.
- Preserves the posterior anatomy, keeping future surgical options open.
- Short procedure, same-day discharge, rapid return to walking.
Recovery
- Walking is encouraged the same day and increased daily.
- Incision soreness and back stiffness for 1 to 3 weeks.
- Restrictions on bending, lifting, and twisting for 6 weeks.
- Leg symptoms often improve within days; walking tolerance builds over weeks to months.
Afterward: what to expect
Bone quality and implant position
This implant relies on the strength of the spinous processes holding it. In patients with low bone density, that bone can fracture or the implant can settle into it, producing sudden, sharp, focal back pain and loss of the benefit. Report that symptom rather than assuming it is ordinary post-procedure soreness, particularly if it follows a fall, a hard cough, or a twist. Bone density testing and treatment of osteoporosis protect this result.
- The flare. Incisional and mid-back soreness for 1 to 3 weeks is expected. It is muscular and positional. Ice 20 minutes on, 20 off for the first 72 hours; continue baseline medications.
- Leg symptoms. Often improve within days, but residual numbness or tingling can take months to resolve as the nerve recovers.
- Anti-inflammatories. If a fusion device was placed, avoid NSAIDs (ibuprofen, naproxen, meloxicam) for 6 weeks; they may interfere with bone healing.
- Nicotine. Nicotine in any form substantially impairs bone fusion. Complete abstinence is required through the healing period.
Activity
Wound care
Your procedure in one paragraph
You have undergone placement of an interspinous implant at the level identified on your implant card. The implant holds the treated segment in slight flexion, enlarging the spinal canal and nerve openings and relieving pressure on the nerves producing your leg symptoms. No bone or ligament was removed. If a fusion device was used, graft material was placed and the segment will fuse over the coming months.
Follow-up schedule
- 1
2 weeks
Incision check and strip removal.
- 2
6 weeks
X-rays to confirm implant position; restrictions typically lifted.
- 3
3 months
Functional reassessment and activity progression.
- 4
6 months
X-rays to assess fusion, if a fusion device was placed.
Call us right away if you notice
- New or worsening leg weakness, numbness, or foot drop
- Loss of bowel or bladder control, or numbness in the saddle area
- Sudden, severe, focal back pain after a twist, hard cough, or fall
- Fever above 101.5°F, chills, or increasing redness, swelling, or drainage at the incision
- Wound edges separating or the incision opening
This guide is the same information as the printed handout from Abilene Pain. It is general information and does not replace the instructions your care team gives you at your visit. Your care team: Nicolas Pugh, MD · Adrianne Anders, NP · Ted Chaka, PA.