Minimally invasive vertebral augmentation for osteoporotic vertebral compression fractures

Table 1 Comparison of percutaneous vertebroplasty and percutaneous kyphoplasty

Parameter	Percutaneous vertebroplasty	Percutaneous kyphoplasty
Main principle	Direct cement injection	Balloon-assisted cavity creation followed by cement filling
Operative burden	Lower	Higher
Height restoration	Limited	Better
Kyphosis correction	Limited	Better
Leakage control	Depends heavily on injection control	Potential advantage as injection usually involves lower pressure
Typical clinical use	Rapid stabilization in frail patients or those with less deformity	Acute/subacute fracture with greater collapse or deformity
Cost	Lower	Higher