[Technical development of spinal neurostimulation.].

The rationale for the use of spinal cord stimulation (SCS) in the treatment of chronic pain arose from Melzack and Wall's gate theory of the control of pain (1965). Originally electrodes were placed directly on the spinal cord via open operation, while now they are placed by means of direct puncture the epidural space. In most cases, one of two different systems is used: (1) semi-implants, consisting of an implantable electrode, connection cable and receiver, and externally worn stimulator with antenna; (2) full implants, consisting of an implantable electrode, connection cable and a stimulator, which is also implanted. The implantation of an SCS system is a surgical procedure, which requires the highest standards in asepsis. The operation and its complications and ways of avoiding them are described.