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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_X | Pages 131 - 131
1 Apr 2012
Vadhva M Wardlaw D Sabboubeh A
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Assessment of long term results of Chemonucleolysis vs. surgical enucleation in soft disc herniation. From 1982 to 1985, 100 patients with symptomatic disc herniation were randomly allocated to receive either Chemonucleolysis or disc enucleation after all these patients had a trial of conservative treatment for three months. The outcome of result was measured using MacNab Criteria with the help of. Questionnaire. Assessing the patients in clinic. 44 patients out of original 100 patients were followed up in the clinic 25 years later. 24 were from chemonucleolysis group and 20 from the surgical group. According to MacNab criteria 62.5% had excellent or good results and 25% poor results in chemonucleolysis group and in surgery group 70% had excellent or good results and 10% poor results. Patients with poor result in Chemonucleolysis group consisted of: a) 1 had poor result post TKR, b) 4 were offered surgical enucleation subsequent to failed Chemonucleolysis though they did not seem to benefit from surgery and 1 out of these 4 also had fibromyalgia. c) 1 had poor result after sustaining fracture neck of femur. Poor results in surgical group were due to persistent back pain. The results at 25 year follow-up have shown no statistically significant difference between the patients treated by either chemonucleolysis or surgery. The added benefit of using the chymopapain injection is that it is of lower cost. Chemonucleolysis should have a wider role in treatment of intervertebral disc herniation