Fig. 4From: Percutaneous versus open posterior stabilization and decompression in AOSpine-type A3 thoracolumbar fractures with neurological deficit a Fracture fragments are indicated by a red solid arrow, and the dura sac is illustrated by a blue solid arrow. b After laminectomy, a retractor tubular system was implanted (blue hollow arrow); the dura sac was protected using a nerve root retractor (yellow solid arrow); an L-shaped tamp was applied for the reduction of major intraspinal fracture fragmentsBack to article page