Stabilization of the lumbosacral spine in postlaminectomy syndromes. Technique and 2-year results.

A 2-year follow-up study is presented using transpedicular stabilization with USIS (Universal Spinal Instrumentation System) and dorsoventral fusion for failed back syndrome. Eighty-four % excellent and good results at 3 to 6 months have decreased to 56% at 1 to 2 years. Complications are few if the anatomic landmarks are respected. Many psychological and social factors also modify the final outcome of salvage surgical procedures. Only the relief of pain determined our subjective evaluation by the patient himself, without regard to sensory or motor deficiencies.