[The assessment of accuracy and safety of thoracic pedicle screw placement in the fracture of thoracic spine].

Objective: To investigate the accuracy and safety of pedicle screw placement in the fracture of thoracic spine.

Methods: On the basis of imaging for the fracture of thoracic spine of 50 cases, the screw prick point, angle, depth and diameter were measured and defined on the thoracic vertebrae pedicle by CT thin-slice scan in standard prone in all cases. The accuracy and safety of screws placement was evaluated with X-ray and CT thin-slice scan in all cases postoperative.