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Lumbar spondylolisthesis. Surgical reduction and stabilization by Harrington's technique.

The author discusses the reduction and stabilization of lumbar spondylolisthesis by the posterior route according to Harrington's technique based on ten years experience since his first communication. The case histories, technique, and results are reported in eighteen cases treated during the ten years 1968-1977 at the Istituto Ortopedico Toscano, Florence, with some illustrative examples.