[Correlations among clinical, caudographic, electromyographic examinations and surgical findings in lumbosacral disc herniations: value of electromyography].

The Authors examined 50 patients affected by lumboischialgy deriving from disk herniation and on the basis of the surgical results determined the degree of reliability of the clinical examination the caudography and the electromyography. The electromyography resulted the most trustworthy test of the three demonstrating a degree of accuracy equal to 85% against that of 80% of the caudography and of 67.5% of the clinical examination. Moreover a statistical elaboration of data is carried out.