Department of Orthopedics;
National Taiwan University Hospital and Jinshan Branch;
Taiwan;
Department of Orthopedics;
National Taiwan University Hospital;
Taiwan;
Department of Orthopedics;
Min-Sheng General Hospital;
Taiwan;
Osteoporotic; Vertebral; Compression; Fracture; Minimally; Invasive; Spine; Surgery; Intra-Vertebral; Expandable; Pillar; Fracture; Union; Bone; Cement;