Nerve root compression in spondylolysis and spondylolisthesis

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Edelson JG. Nathan H. J Bone Joint Surg Br. 68(4):596-9, 1986 Aug. Thirty-four bony specimens of isthmic spondylolysis were examined and, in a significant number (32%), stenosis of the intervertebral foramen was noted. Although not emphasised in previous reports, this finding may be an important factor in the aetiology of nerve root compression when this is associated with spondylolysis and spondylolisthesis. Anatomical guidelines for adequate surgical decompression are suggested.