Intertransverso Access using Tubular Retractor Caspar Cylindrical and Penrose Drain as an Aid in Muscular Retraction - Study of 502 Cases

The authors review the literature addressing neuro-anatomical knowledge of the root and root ganglion dorsal. Describe the technique for the interlaminar and intertransverso access using tubular retractor Caspar cylindrical Penrose drain as an aid in muscular retraction. Based-seem 502 cases operated in 25 years. The objective of this paper is to describeat echniquewith small skinincision, lowaggressivenessanatomical structures without functional loss of paraspinal musculature, broad surgical field, easy work with both hands, high early hospital about 24 hours and low cost.