Cervical discectomy without fusion was a procedure that was performed about 30-40 years ago by neurosurgeons. It was a disaster. The removed disc allowed the level to collapse and then fuse in many cases. This narrowed the nerve exit hole (foramen) and many of these patients had continuing arm pain. The ACDF procedure restored the height of the foramen and relieved pain so much better that the discectomy without fusion was left in the dustbin of surgeries.
You misunderstood me regarding discectomy success rates in the lumbar spine. The procedure is almost 100% effective in removing the protruding disc. If the patient has leg pain, the discectomy is 95% effective for leg pain relief. If the herniation causes back and not leg pain, discectomy is 50-70% effective in eliminating the back pain.
Dr. Corenman
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.