Percutaneous vertebroplasty (PVP) and percutaneous kyphoplasty (PKP) are the latest techniques developed in Europe and the United States in recent years for the minimally invasive interventional treatment of vertebral compression fractures caused by osteoporosis. PVP involves the percutaneous injection of bone cement, etc., into the vertebral body and the vertebral arch, mediated by an imaging system, to enhance the strength and stability of the vertebral body and to relieve pain. A sagittal plane deformity (kyphosis) can be caused by osteoporotic vertebral compression fractures. PVP cannot effectively restore the height of the vertebral body and correct the kyphosis, but PKP can effectively solve the above problem by percutaneously puncturing an expandable bone expander into the vertebral body and injecting bone cement at low pressure into the space formed by the expansion of the vertebral body to restore the height of the vertebral body and correct the kyphosis deformity.