Fig. 1From: A novel, percutaneous, self-expanding, forceful reduction screw system for the treatment of thoracolumbar fracture with severe vertebral height lossThe novel percutaneous self-expanding forceful reduction screw system presented is uniaxial screws with reduction angles and drop-prevention bolts (red arrow). From the left to right screws, the reduction angles are 0°, 6°, and 9° in turnBack to article page