Osteopenia vs Osteoporosis: Understanding Your DEXA Results and Fracture Risk
A DEXA scan can tell you a lot about your bone health. But what does it mean if your results show osteopenia or osteoporosis?
Both conditions involve reduced bone mineral density (BMD), but they differ in severity and the associated risk of fractures.
What is the difference?
Osteopenia refers to bone density that is lower than normal, but not low enough to be classified as osteoporosis. It can be an early indicator of declining bone health.
Osteoporosis is a condition characterised by reduced bone density and deterioration of bone structure. This makes bones weaker and more susceptible to fractures, sometimes following relatively minor falls.
Understanding your DEXA T-score
A DEXA scan measures bone mineral density, typically at the hip and lumbar spine. Results are reported as a T-score, which compares your bone density with that of a healthy young adult reference population.
The lower your T-score, the lower your bone density.
T-score | Classification |
-1.0 or above | Normal |
Between -1.0 and -2.5 | Osteopenia |
-2.5 or below | Osteoporosis |
These classifications primarily apply to postmenopausal women and men aged 50 years and older.
Does osteopenia mean you will develop osteoporosis?
No. Having osteopenia does not automatically mean you will develop osteoporosis.
Ageing, genetics, nutrition, physical activity and hormonal changes all influence bone health.
For women, declining estrogen levels during perimenopause and menopause can accelerate bone loss, making this an important time to consider bone health.
Identifying osteopenia provides an opportunity to assess risk factors and take steps to support bone health before more significant bone loss occurs.
Why is fracture risk important?
Your T-score does not tell the whole story. Two people with the same bone density can have very different fracture risks.
Age, previous fractures, family history, medications, body weight and falls history all contribute to overall risk.
A hip fracture is one of the most serious complications of osteoporosis. Even a fall from standing height can result in a fracture when bone strength is significantly reduced.
The consequences can extend well beyond the initial injury, including:
Hospitalisation and surgery.
Reduced mobility and muscle strength.
Loss of independence and difficulty performing everyday activities.
Increased risk of further health complications.
Increased risk of mortality.
Australian data indicate that approximately 1 in 4 people die within 12 months of a hip fracture. Hip fractures can also result in long-term care needs and a significant reduction in quality of life.
This is why identifying reduced bone density and assessing fracture risk before a fracture occurs is so important.
Can you improve your bone health?
There are several ways to support bone health and reduce the risk of further bone loss.
Resistance training: Helps stimulate bone and maintain muscle strength.
Weight-bearing exercise: Activities such as walking, jogging and stair climbing provide mechanical loading to the skeleton.
Calcium: Adequate dietary calcium is essential for maintaining bone structure.
Vitamin D: Supports calcium absorption and bone health.
Protein: Helps maintain muscle mass and supports bone structure.
For some individuals, lifestyle changes alone may not be sufficient. Medical treatment may be recommended depending on bone density, fracture history and overall fracture risk.
Understanding your bone health starts with knowing your numbers
Osteopenia and osteoporosis are not the same, but both are important indicators of bone health.
A DEXA bone density scan helps identify reduced bone density and provides valuable information to support the assessment of fracture risk.
At Physique Science, we provide diagnostic DEXA bone density scans to help assess your bone health.
Know your bone density. Understand your risk. Take action for your future bone health.
