A statistical analysis was made in 115 cases of spinal injury with roentgenological evidences. The following results were obtained; 1. The male 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 falling down (40.9%), and the traffic accident wasat the next in order (34.8%). 3. The spinal injuries affecting the lumbar and thoracolumbar regions were 88.4% inthe 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 majotiry of the spine injury was vertebral body fracture(78.8%), and the next was fracture of the transverse process(9.5%). 6. The fracture involving a single vertebral was seen in 81.2%, and the most common injury in association with spinal injury was the multiple ribfractures.