Successful results of chemonucleolysis depend specially on a strict patient selection. In this paper the influence of different preoperative, clinical and radiologic factors on the results two years after chemonucleolysis, is reviewed through the statistical analysis of the cases. The author s hav e observed the isolated or persistent low back pain (rather than sciatica), and being an autonomous worke r as poor prognosis factors in their environment. Size and site, either midline or lateral, of the disc herniation did not influence the results of chemonucleolysis with statistical significance; nor did the number of discs explored or injected, neither the presence of radiologic or tomodensitometric findings associated with symptomatic disc herniation.... [Leer más...]