Donald Corenman, MD, DC
Post count: 8436

Fusion is only necessary if there is instability of the segment present or the major complaint is lower back pain and not buttocks and leg pain. The other indication for fusion is a collapse of the foramen (the exit zone of the nerve root) where further decompression will only lead to further collapse. In this case, a fusion is necessary to open up this hole and prevent further collapse.

Dr. Corenman