Interspinous Process Spacers

Interspinous Process Spacers for Spinal Stenosis

In this surgical procedure, a titanium alloy device is implanted to relieve back pain or numbness in the legs or buttocks caused by spinal stenosis. This procedure is a non-fusion, minimally invasive alternative to laminectomy with or without spinal fusion.


Anesthesia is administered and the patient is positioned. A small incision is made in the lower back.

Accessing the Spine

An opening is created through the ligaments at the rear of the spine. The surgeon can now access the spinous processes, the bony protrusions on the back of the spine, of the problem vertebrae.

Preparing the Implant Site

Some of the bony overgrowth of the spinous process may need to be removed for the implant to fit properly. A small portion of one or more lamina may also need to be resurfaced.

Implanting the Coflex

Using fluoroscopic guidance, the Coflex implant is inserted through the incision and placed between the spinous processes.

End of Procedure and Aftercare

In many cases, the patient will be able to return home the same day or after an overnight stay. The surgeon will determine the length of the hospital stay and will guide the post-operative recovery.