Osteoporosis is a common problem in an aging society, and vertebral compression fracture is one of the common complications in elderly people suffering from osteoporosis, with an overall incidence of about 1.23% and a female incidence of 1.53%. They have to stay in bed for a long time due to pain, inability to stand, and endure the pain and suffering caused by a series of complications such as possible decubitus ulcers, crushing pneumonia, urinary tract infections, and venous thrombosis of the lower extremities. These patients are often old, weak and have many underlying diseases, which make treatment difficult and bring heavy burden to patients and families. Inadequacy of traditional treatment methods In the past, patients with these fractures were treated by conservative treatment and open surgery. The conservative treatment is bed rest for 2 to 3 months, oral blood-activating and pain-relieving medication, and functional exercises for the back muscles in bed, which often causes complications in other systems of the body and brings great inconvenience to the life of the elderly. Surgical treatment, on the other hand, involves making a large incision in the patient’s back and then driving several nails into the vertebrae of the spine for vertebral fixation. However, due to the severe osteoporosis in the elderly, especially in the elderly, it is difficult to stabilize the internal fixation for a long time, and the nails often have to be removed again with poor results. Moreover, this kind of open surgery is very traumatic, slow recovery for the elderly, and has many postoperative complications. Minimally invasive surgery is well received by elderly patients. “Balloon expansion vertebroplasty” involves cutting a small hole about 5mm in the back of the patient’s compressed vertebral body, feeding a specially designed balloon into the center of the fractured vertebral body, then pressurizing and filling the balloon with fluid, and the expanding balloon gradually supports the collapsed vertebral body. When the shape of the vertebral body returns to the normal size, the balloon is removed and medical bone cement is injected into the cavity in the center of the vertebral body through the hole. When the cement sets, it is harder than the original bone, which ensures that the recovered vertebral body will not be compressed again during surgery, and the deformity of the spine is corrected and the pain disappears. Balloon-expandable vertebral kyphoplasty is a new technique in the field of spinal surgery. The application of this technique in spinal surgery can improve the safety of spinal surgery, reduce the complications of spinal surgery, and become one of the important techniques of minimally invasive spinal surgery. It is safe, reliable, with precise efficacy and few complications. In the past 3 years, our orthopedic department has successfully treated more than 60 elderly patients without a single complication. Balloon expansion vertebroplasty function: 1, relieve pain 2, reset and stabilize the fracture 3, restore the height of the vertebral body 4, reduce the deformity of the spine Indications: 1, patients with osteoporosis who still have severe pain after a week of bed rest and drug treatment. 2.Patients who cannot tolerate pain medication. 3.Patients with vertebral fractures who should not be bedridden for a long time. 4.Patients with vertebral bone tumor.