Pain control with laser-produced dorsal root entry zone lesions

S. K. Powers, N. M. Barbaro, R. M. Levy

Research output: Contribution to journalArticle

24 Scopus citations


Pain relief was evaluated in 40 patients with various types of deafferentation pain that were treated with dorsal root entry zone (DREZ) lesions produced with microsurgical lasers. Good long-term pain relief was evident in some paraplegics and in all patients with brachial plexus avulsion. Several other small subgroups of patients benefited from laser DREZ lesions as well. Pain associated with arachnoiditis and peripheral nerve injury or neuropathy did not respond to laser DREZ lesioning. Based upon the smaller lesion dimensions produced with the lasers, it is proposed that interruption of impulses in the tract of Lissauer may be a mechanism of pain control in patients that responded to laser DREZ lesions.

Original languageEnglish (US)
Pages (from-to)243-254
Number of pages12
JournalApplied Neurophysiology
Issue number2-5
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Clinical Neurology

Fingerprint Dive into the research topics of 'Pain control with laser-produced dorsal root entry zone lesions'. Together they form a unique fingerprint.

  • Cite this

    Powers, S. K., Barbaro, N. M., & Levy, R. M. (1988). Pain control with laser-produced dorsal root entry zone lesions. Applied Neurophysiology, 51(2-5), 243-254.