ABSTRACT Objective: To determine which method is more effective – cranial halo traction or temporary internal distraction – in staged surgeries for patients with severe (≥ 100°) and stiff (<25% flexibility) scoliosis. Methods: A sample of 12 patients with traction and 7 patients without traction, operated on between January 2013 and December 2017. The patients’ demographic data, the type of surgery performed, c...