Three cases with the burst fracture of lower lumbar spine who were injured in a falling accident of the air plane, were reported in this paper. It is well known that the most frequent fracture of the spine in a falling accident is the compression fractures of Th-11 to L-2 and the Jower lumbar spine is rarely involved.
The mechanism of fracture was discussed. We thought that the longitudinal axial pressure through the vertebral disc and/or the hyper-flexion of lumbar spine caused that type of fracture.
