BACKGROUND: The paraspinal posterior approach to the lumbar spine initially was described for spinal fusion, particularly for the treatment of lumbosacral spondylolisthesis. Wiltse described his approach for lower lumbar and sacral vertebrae by bilateral incisions 4.5 cm lateral to the mid-line going through the natural cleavage plane between the multifidus part of sacrospinalis and the longissimus part. This will carry ... Read more