Relationship between clinical and computed tomograpic findings of lumbar disc herniation - Radiological investigation are routinely applied for the diagnosis of lumbar disc herniation. The objective of this study was to compare the clinical symptomatogy of the cases to computed tomograpic (CT) findings in patients with lumbar disc herniation. AII 48 cases (female 34/male 14) which were involved for this study had acute back and/or leg pain. The mean age of cases was 40.4+11.6 Duration of the symptoms was 10.9+20.8 months. Duration of the last attack was 4.1+3.2 months. Body mass index of our cases was 26.0+4.5 There was a history of trauma in 20.5 % of the cases 53.8 % of the cases showed sensory changes, 8.5 % showed motor deficits, 44.7 % showed neurological claudication. Urinary incontinance and sexual impotance were not found in any cases. The direction of herniation was median in 49 %, paramedian in 37.4 %, posterolateral in 11.8 %, intraforaminal in 2 % of the cases. L4-L5 was the level that showed the most of herniations. Bulging was the type that showed the most of herniations. The severity and location of pain were not correlated with the level, the direction and the type of herniation (p<0.05). We found that sensory changes were often in the posterolateral herniatinos (p<0.01) and the motor deficits were less frequent in the cases with bulging than in those with other types of herniations (p<0.05). The Kerning's sign was more frequently found in those cases which had ruptured disc herniation and those with intraforaminal herniations. Regarding the results of our study, evidences of CT were significantly correlated to som eof clinical findings, but were not correlated to the complaints of patients. We think that CT should not be the only diagnostic test for lumbar disc herniations.