Microsurgical cordotomy in 20 patients with epi-/intradural fibrosis following operation for lumbar disc herniation.

Using an improved microsurgical technique, cordotomy was carried out by the cervicothoracic route in 20 patients with persistent radicular pain due to epi-/intradural fibrosis following operation for lumbar disc herniation. 65% of them had good long-term results with respect to radicular pain (follow-up period 6-132 months; mean 66 months). Permanent severe motor impairment was not observed. In patients with severe pain of benign organic origin microsurgical cordotomy can be considered as a "last resort".