Coflex is a device that has limited use. The problem with the device is that the vertebra is forced into flexion, the supraspinous and interspinous ligaments are removed and pressure on the spinous processes can erode or even fracture them. I would recommend a CT scan to determine spinous process status for prognosis. If your pain is generated from that particular disc, removing the device can be helpful. If the disc is very degenerative and the level is stable on flexion-extension X-rays, you should be OK removing the device.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.