We studied 468 cases of lumbar disk hernias. They were surgically operated following standard clinical and radiological criteria. Of the 468 cases, 319 were operated using standard techniques and 149 cases were operated with microsurgery. Comparative study between these two techniques and results were evaluated. The results were excellent in 82.3% of cases when used standard techniques, and were excellent in 91.4% with microsurgery. We concluded, that microsurgery in lumbar disk hernias is a good option to decrease the risk of surgical trauma and to obtain a better postoperative prognosis.