患者男性，17岁。9年前曾由2米高之墙头跌下，双足及臀部着地，腰部剧烈疼痛，自行走回家中。医院摄片示第四腰椎椎体压缩1／3，卧床休息1个半月后，逐渐下地行走。之后骑自行车摔倒，臀部着地，腰疼不止，X线片示原骨折处椎体几乎压缩为原厚1／2，再次卧床休息1个月，腰疼消失 The patient is male, 17 years old. 9 years ago, he fell from the wall with a height of 2 meters, and his feet and buttocks touched the ground. His back was severely sore and he was walking home. The hospital photo shows that the fourth lumbar vertebral body is compressed by 1/3, and after one and a half months of bed rest, it gradually walks down. After riding a bike and falling, the hips touched the ground, and the backache was more than that. The X-ray film showed that the vertebral body of the original fracture was almost compressed to the original thickness of 1/2, and once again stayed in bed for 1 month, the back pain disappeared.