Vertebroplasty and Kyphoplasty Explained
What is a vertebroplasty, and how does it differ from kyphoplasty? Both are minimally invasive spine procedures used most often to treat painful vertebral compression fractures. These fractures occur when one of the bones in the spine weakens, collapses, or develops a wedge-shaped deformity.
The procedures use medical bone cement to stabilize the affected vertebra and reduce fracture-related pain. Kyphoplasty adds an earlier step: a small balloon is inserted and inflated inside the collapsed bone before the cement is placed. This may create a cavity for the cement and can sometimes improve vertebral height.
The best treatment depends on the fracture’s age, cause, location, severity, and effect on the spinal nerves. A careful evaluation helps determine whether a procedure is appropriate or whether medication, bracing, physical therapy, or osteoporosis treatment should come first.
What vertebroplasty does
During vertebroplasty, a surgeon guides a hollow needle through the skin and into the fractured vertebra. Imaging, commonly fluoroscopy or computed tomography, helps confirm the needle’s position. The surgeon then injects bone cement into the damaged bone, where it hardens and reinforces the vertebral body.
The primary goals are pain reduction and stabilization. Vertebroplasty does not remove a herniated disc, widen a narrowed spinal canal, or directly decompress a pinched nerve. It is designed for a painful compression fracture rather than for every type of back pain.
Compression fractures frequently result from osteoporosis, which makes bone less dense and more fragile. They may also be related to metastatic cancer, certain benign tumors, or significant trauma. Treating the underlying bone weakness remains important after the procedure because other vertebrae can fracture later.
How kyphoplasty works
Kyphoplasty uses a similar image-guided approach but begins with one or two small working channels into the fractured vertebra. A specialized balloon is placed through the channel and carefully expanded. The balloon may help elevate a depressed portion of the vertebral body and creates a space for a controlled amount of cement.
After the balloon is removed, the cavity is filled with bone cement. The cement hardens quickly, helping stabilize the fracture. Kyphoplasty may restore some lost vertebral height in selected cases, particularly when the fracture is relatively recent and the vertebra remains capable of being repositioned.
Height restoration is not guaranteed, and the procedure does not always correct a spinal curve completely. Its main purpose, like vertebroplasty’s, is to address pain and instability caused by a compression fracture.
Key differences at a glance
Vertebroplasty and kyphoplasty share the same broad objective, but their techniques are different. Vertebroplasty injects cement directly into the fractured bone, while kyphoplasty uses a balloon before cement placement. The balloon can create a cavity that may reduce cement leakage and allow an attempt at vertebral height correction.
Clinical decisions are individualized. In some patients, either treatment may provide meaningful relief; in others, neither procedure is suitable. Imaging findings must match the pain pattern, and the fracture should be distinguished from other causes of back pain, such as spinal stenosis, degenerative disc disease, or a disc injury.
| Feature | Vertebroplasty | Kyphoplasty |
|---|---|---|
| Main technique | Cement is injected directly into the fractured vertebra | A balloon is expanded before cement injection |
| Primary goal | Stabilize the fracture and reduce pain | Stabilize the fracture, with possible height restoration |
| Cement placement | Direct injection into bone | Injection into a balloon-created cavity |
| Incisions | Usually very small | Usually very small |
| Anesthesia | Depends on the patient and treatment plan | Depends on the patient and treatment plan |
| Suitability | Selected painful compression fractures | Selected painful compression fractures, especially when collapse or deformity is a concern |
| Important limitation | Does not directly decompress nerves | Does not directly decompress nerves or treat every spinal deformity |
Who may benefit from either procedure
A patient may be considered for vertebral augmentation when pain is severe, localized, and linked to a compression fracture confirmed by imaging. Symptoms can include sudden back pain after a minor movement or fall, increased pain while standing, and difficulty walking or completing everyday activities. MRI may show bone marrow edema, which can help identify a more recent fracture.
Doctors commonly begin with conservative care when symptoms and fracture stability allow. Options may include temporary activity modification, pain medicine, a brace, physical therapy, and treatment for osteoporosis. Persistent pain that prevents normal activity may prompt discussion of vertebroplasty or kyphoplasty.
A medical assessment is especially important when cancer, infection, multiple fractures, or neurological symptoms are possible. Numbness, weakness, loss of bladder or bowel control, fever, or rapidly worsening pain requires prompt medical attention rather than routine observation.
Risks, recovery, and realistic expectations
Both procedures are generally performed through small skin openings, and many patients go home the same day or after a short period of observation. Some people experience pain relief quickly, while others improve gradually. Follow-up care may include walking guidance, medication adjustments, bone-strengthening therapy, and treatment of the original cause of the fracture.
Possible risks include infection, bleeding, allergic reaction, cement leakage, nerve irritation, spinal cord injury, and problems related to anesthesia. Cement leakage is often minor, but in uncommon cases it can affect nearby nerves or enter a blood vessel. New fractures in adjacent vertebrae may also occur, particularly when osteoporosis remains untreated.
A procedure cannot reverse every source of back pain. If symptoms come from nerve compression, spinal canal narrowing, or an unstable injury extending beyond the vertebral body, a different treatment may be needed. The Ocala Neurosurgical Center provides evaluation for a range of brain and spine conditions, helping patients understand which options fit their diagnosis.
How the treatment decision is made
The choice between vertebroplasty, kyphoplasty, and nonsurgical care begins with a review of symptoms, medical history, physical findings, and imaging. X-rays can show changes in vertebral shape, while MRI or CT may clarify fracture activity, bone destruction, spinal canal involvement, and other structural problems.
Timing matters. A fresh, painful fracture may respond differently from an old, healed compression deformity. The number of affected vertebrae, degree of collapse, bone quality, and overall health also influence the risk-benefit assessment. A consultation should explain expected pain relief, possible limitations, anesthesia needs, and alternatives.
These procedures should also be distinguished from operations designed to replace or stabilize discs. For example, artificial disc replacement addresses selected disc-related conditions and has a different purpose from vertebral augmentation.
Points to discuss with a spine specialist
Before choosing treatment, patients may want to review:
- Whether the pain is definitely caused by an active vertebral compression fracture
- Whether bracing, medication, physical therapy, or osteoporosis care should be tried first
- Whether vertebroplasty or kyphoplasty is more appropriate for the fracture’s shape and age
- What imaging is needed to assess the spinal canal, nerves, and surrounding structures
- How the procedure, recovery period, and possible complications apply to the individual case
Persistent fracture pain can limit mobility and may contribute to further loss of strength. A timely evaluation can clarify whether vertebral augmentation is appropriate, identify conditions requiring a different operation, and support a plan to protect long-term spinal health. Schedule a consultation with a qualified neurosurgical team to review your imaging, symptoms, and treatment options.