Fig. 4

The mechanism of thoracolumbar burst fractures with greenstick lamina fractures cause neurological deficits postoperatively. a–b Dural tears and/or cauda equina entrapment are associated with greenstick lamina fractures accompanying thoracolumbar burst fractures. There is no neurological deficit because the dural sac is loose before reduction. c, d Any operative reduction that closes the lamina fractures may crush the entrapped nerve roots and show symptoms postoperatively