Methods 30 T12-l2 vertebras of pigs were dipped into EDTA for 14 days to incur osteoporosis, and were compressed to cause vertebral fracture.

• 方法将30具猪三联椎体分成2组，应用EDTA进行化学法制备成类似骨质疏松状态，并造成压缩性骨折模型，测量并记录各个数据。