A statistical analysis was made in 115 cases of spinal injury with roentgenological evidences. The following results were obtained: 1. The males were affected far more frequently than the females with the ratio of 4 to 1. The spine injures occured in the third, fourth and fifth decades of life in 61.8% of the patients. 2. The most common cause of the spinal injury in this series was known to be fallingdown (40.9%), and the traffic accident was at the next in order(34.8%). 3. The spinal injuries affecting the lumbar and thoracolumbar regions were 88.4% in the all cases of falling-down and 72.5% in automobile accident. 4. The first lumbar vertebra was most commonly involved(21.8%) and then L2(18.1%) and T12(15.0%). 5. The majority of the spine injury was vertebral body fracture(78.8%), and the next was fracture of the tranverse process(9.5%). 6. The fracture involving a single vertebra was seen in 81.2%, and the most common injury in association with spinal injury was the multip e rib fractures.