PubMed · 2292690
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R Johnston. 1990. Spinal surgery.. https://doi.org/10.1136/jnnp.53.12.1021
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A series of 12 patients with failed chemonucleolysis were analyzed to determine the various causes of such failures. The ultrastructural findings observed in laminectomy specimens did not account for the failure in the enzyme treatment. The findings suggested deficient cellular nutrition secondary to enzymatic histolysis of the nucleus pulposus.
In this study, based on 600 cases of lumbar disc herniation treated by chemonucleolysis, the authors underline the importance of performing good discography and interpreting its results. A discographic classification of intervertebral disc deterioration is suggested. A CT-discographic study is reported and its results are compared with those of standard discography. On the basis of these studies, the authors have established methodological data concerning the efficacy of chemonucleolysis and its evaluation.