What Is a Vertebral Compression Fracture, and Why Am I Losing Height?
A vertebral compression fracture happens when a bone in your spine collapses under load, often because of osteoporosis. The front of the vertebra crumbles into a wedge shape, shortening your spine and making you lose height. Many people never feel a dramatic break. Instead, they notice gradual rounding, back pain, or clothes fitting differently.
Key takeaways
- Compression fractures are the most common fracture linked to osteoporosis, especially after age 50.
- You can lose noticeable height from even one collapsed vertebra, and multiple fractures accelerate the change.
- Pain may be sudden and sharp, or it may build slowly over weeks.
- A standing scan shows how a fracture changes your spinal alignment under real weight-bearing load.
- If you have sudden severe back pain, numbness, weakness, or loss of bladder or bowel control, seek urgent medical attention (GP, 111, or A&E).
What are the symptoms of a spinal compression fracture?
The most common sign is a sudden, sharp pain in the middle or lower back that gets worse when you stand or walk and eases when you lie down. But not everyone gets a dramatic moment of pain. Some fractures happen gradually, and the first clue is that you are getting shorter, your posture is rounding forward, or a belt sits higher than it used to.
Seek urgent help. If you develop sudden severe back pain along with numbness or weakness in your legs, or any change in bladder or bowel control, contact your GP, call 111, or go to A&E. These symptoms need immediate medical assessment.
What causes a vertebral compression fracture?
The overwhelming majority of compression fractures are caused by osteoporosis, a condition where bones gradually lose density and become fragile. In healthy bone, a vertebra can handle everyday loads. In weakened bone, something as minor as stepping off a kerb, sneezing forcefully, or bending forward to pick up a bag can be enough to collapse the front edge of a vertebra into a wedge shape.
When the front of a vertebra collapses more than the back, the bone takes on a wedge shape. Stack several wedge-shaped vertebrae on top of each other and the spine curves forward. That forward curve is what steals your height and changes your posture over time.
Why does a standing scan show compression fractures differently?
A standing scan captures your spine under real gravity, which is exactly when a compression fracture has its greatest effect. When you lie down for a standard X-ray, CT, or MRI, gravity is removed. The fractured vertebra is partially unloaded, and the full extent of the collapse and its knock-on effects can be hidden.
A standing lateral view shows how the fractured vertebra behaves under your full body weight. It reveals the true amount of anterior collapse, any forward tilt of the spine, and how the rest of your body compensates, from the pelvis tilting to the knees bending. This gives your specialist a complete picture of your sagittal balance.
Lying down relaxes your muscles and removes gravity. The fractured vertebra may partially decompress, making the collapse look less severe than it really is. The image also cannot show how the rest of your body adapts when you are upright, which is the position where you actually experience your symptoms.
Your body is a connected chain from your feet to your head. When one vertebra collapses, the spine tilts forward. Your pelvis, hips, and knees all adjust to keep you upright. That compensation can cause pain in areas far from the fracture itself. ScanAlign standing EOS imaging captures the full chain in a single standing image, using about 90% less radiation than a standard X-ray, around ten times less.
When MRI is the better choice: EOS shows bones, joints, and alignment. If your specialist needs to look at the spinal cord, nerves, discs, or soft tissue around a fracture, MRI is usually the better tool. Both types of imaging can work together to give a complete picture.
What happens after a compression fracture is found?
ScanAlign is a diagnostic imaging clinic, not a treatment centre. The role of imaging is to give you and your specialist a clear, accurate picture of what has happened to your spine so that the right next steps can be planned. Those steps vary depending on the severity and number of fractures.
For many people, management involves pain relief, activity modification, and sometimes bracing while the bone heals. Where fractures are more severe or not responding to conservative care, procedures such as kyphoplasty or vertebroplasty may be discussed. Your treating clinician will also want to address the underlying bone health to reduce the risk of further fractures.
Accurate standing alignment imaging is particularly useful here. It shows whether the fracture has changed your overall spinal balance, and by how much, helping your specialist decide which approach is most appropriate for you.
Concerned about height loss or a possible compression fracture? A standing EOS scan shows the full picture.
Book a free video consultationIs a standing spine scan right for me?
A standing EOS scan is most helpful when your clinician or you want to understand how a fracture, or suspected fracture, affects your whole spinal alignment under real load.
- Have been told you have a compression fracture and want to see its effect on your posture
- Are losing height and want to know why
- Have osteoporosis and recurring back pain
- Need imaging before or after a spinal procedure
- Have sudden leg weakness, numbness, or bladder/bowel changes (seek urgent medical help)
- Need soft-tissue or nerve detail (MRI is usually better)
- Have a suspected high-energy trauma fracture needing emergency assessment
Frequently asked questions about compression fractures
Many compression fractures do heal with time, rest, and appropriate pain management. The bone knits back together, but the wedge shape usually remains. This means the height loss and any postural change are typically permanent, even after healing.
A single fracture might reduce your height by a small amount. Multiple fractures, especially across several vertebrae, can collectively cause several centimetres of height loss and a visible forward curve.
It can feel like a sudden sharp pain in the middle or lower back, often triggered by bending or lifting. Some people describe it as a deep ache that worsens with standing and eases when lying flat. Others have no obvious pain at all and only notice postural changes.
No. ScanAlign accepts self-referrals. You can book a standing spine scan directly through a free video consultation without needing a GP or consultant letter.
Yes. An EOS scan uses about 90% less radiation than a standard X-ray, around ten times less. You simply stand still for a few seconds. There is no injection, no enclosed space, and it is very gentle on the body.
Yes. When several vertebrae in the thoracic spine collapse into wedge shapes, the cumulative effect pushes the upper back into a rounded curve. Over time this can develop into what is commonly called a dowager's hump, known medically as kyphosis.
Lying down removes gravity. The fractured vertebra partially unloads, which can make the collapse appear less severe. A standing image shows the fracture under your real body weight, revealing how it affects your overall spinal alignment and balance.
Both are minimally invasive procedures used to stabilise a fractured vertebra. They differ in technique and when they are appropriate. You can read a detailed comparison on our kyphoplasty or vertebroplasty guide.
ScanAlign is a private, self-pay clinic. You can start with a free video consultation to discuss whether a scan is appropriate. The consultation is at no cost and with no obligation.
Yes. A collapsed vertebra shifts your centre of gravity forward. Your body compensates by tilting the pelvis, bending the knees, or tightening muscles elsewhere. This changes your sagittal balance and can make walking feel less stable or more tiring.
See your spine the way it actually stands
A free video consultation takes a few minutes. We will help you understand whether a standing EOS scan is the right next step for you.
Book a free video consultationWritten by Abbas Dhami (Specialist Diagnostic Radiographer)
Sources
- NHS. "Osteoporosis." nhs.uk. Accessed 2024.
- Royal Osteoporosis Society. "Vertebral Fractures." theros.org.uk. Accessed 2024.
- Old JL, Calvert M. "Vertebral compression fractures in the elderly." American Family Physician. 2004;69(1):111-116.
This page is general information and not a diagnosis.
ScanAlign is the trading name of CoreMed Solutions Ltd and operates under The Harley Street Hospital's CQC licence.