About osteoporosis
What does the word osteoporosis mean?
Literally put, it means ‘porous bone’.
Porous bone occurs when there is not enough bone formation or there is more bone loss than there is bone formation, causing cavities (like honeycomb) in the bone and making it ‘porous’.
What is osteoporosis and why does it develop?
Osteoporosis, sometimes informally referred to as brittle bone disease, is a skeletal disease where the bones of the body lose mineral density to the point where they become weak, brittle and susceptible to fracture. It typically doesn’t manifest until later in life.
It develops when inevitable age-related bone loss, or symptomatic bone loss of an underlying cause, is not mitigated by the formation of new bone and there is inadequate bone mineral density reserve.
Throughout our lives our bodies are constantly breaking down bone and forming new. Bone is a living tissue made up of different components, such as calcium salts and collagen fibres, and this matrix of components is what gives bone its density and stops it from breaking easily.
Osteoporosis occurs when the breakdown of bone tissue is greater/faster than its formation and bone mineral decreases until it is below a healthy density, resulting in an increased risk of fracture.
Fractures that happen with seemingly minor incidents that would not be forceful enough to break healthy bone are known as fragility fractures and are the hallmark of osteoporosis.
Fractures can be in the form of a break (e.g., hip fracture) or a collapse (e.g., compression fracture of the vertebrae).
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Related FAQs: What are fragility fractures?
Is osteoporosis painful?
Osteoporosis isn’t usually painful until a bone is broken.
- A broken bone is typically the first clear sign of osteoporosis – especially if it was caused by an ostensibly minor fall or injury –and can cause temporary to chronic pain.
- Fractures or collapse of vertebrae in the spine is a common cause of chronic pain, as are hip fractures. There can also be sciatic pain from nerves being compressed by a collapsed spine.
- Microscopic fractures can lead to deep bone pain that some people with osteoporosis describe as comparable to toothache pain.
- Bone growth is slower in people with osteoporosis, so the average six to eight weeks of healing pain most people with a fracture experience may be prolonged.
- Some people experience pain as a side effect of treatment for osteoporosis.
Related FAQs: What are the side effects of osteoporosis treatment? What are the signs/symptoms of osteoporosis?
Is osteoporosis hereditary?
Genes can play a role.
Genetic variants that increase risk have been identified and each variant causes a small increase in risk. Having more than one variant possibly amplifies risk.
However, taking steps to increase bone health (see our articles Adults and Bone Health and Best Exercises for Strong Bones) can go a long way to mitigating inherited risk.
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Related FAQs: How can I prevent my child from developing osteoporosis in later life?
Where are the most common areas in the body to get osteoporosis?
Osteoporosis is a body-wide weakening of bones, but there are areas of the body that are more prone to breaking.
The most common fracture sites are:
- Hip fractures
- Vertebrae (spinal fractures)
- Wrist fractures
- Forearm fractures
- Shoulder fractures
Wrists are particularly susceptible as they often bear the brunt of a person’s weight when they try to break a fall. However, fractures can occur in many other areas, the arm and pelvis also being vulnerable, especially if a person falls awkwardly.
Hip fractures carry an elevated risk of mortality.
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Related FAQs: What are fragility fractures?
What are the stages of osteoporosis?
The ‘stages’ of osteoporosis are just the gradual thinning of bone until it becomes so marked as to be considered osteoporotic.
The stage before osteoporosis, where the bone is thinning but not yet clinically considered to be osteoporosis, is called osteopenia.
Clinically, bone mineral density (BMD) – which can be measured by a DEXA scan – carries a score that is the result of comparing a patient’s BMD with that of a young and healthy person’s peak bone density. This is known as a T-score and is used to determine primary osteoporosis (weak bones without an underlying cause).
The T-score result reflects what range a person’s bone density is in:
- Normal range (+1 to -1)
- Osteopenia range (-1 to -2.5)
- Osteoporosis range (-2.5 and below)
For premenopausal women, men younger than 50 and children, the comparison is made against people of the same age and sex to try and identify a secondary cause of bone loss, and this is called a Z-score.
Related FAQs: How does osteoporosis affect the body?
What is osteopenia?
Osteopenia is the thinning of bones to the point where bone mass is below average for age but not to the point of osteoporosis diagnosis.
Although the precursor to osteoporosis, having osteopenia does not mean it will definitely develop into osteoporosis, and you may be able to prevent osteopenia from worsening.
The same risk factors for osteoporosis apply for osteopenia.
Deterioration of bone is an inevitable part of the aging process; however, for some people it is so gradual that it never becomes osteoporosis. See also A Personal Story of Recovery.
Related FAQs: How can I prevent osteoporosis?
What is the life expectancy of someone with osteoporosis?
This is highly dependent on various factors, such as severity of condition and if they are being treated.
A person can live with osteoporosis for a long time, and it is not in itself a terminal disease. However, if a person suffers a hip fracture and they are not treated in a timely manner, then this carries a mortality risk. 20% of people who go into hospital with a hip fracture do not survive the year; most of the deaths are due to associated conditions and are not attributable to the fracture itself, reflecting high levels of comorbidity. The 80% of people that do survive are not independent due to the fracture and the health issues it causes.
Related FAQs: Can osteoporosis be cured/reversed?
What are fragility fractures?
Fragility fractures occur when a person’s bones have become so weak that a low energy trauma that wouldn’t cause injury to healthy bone results in a bone fracture. They are the hallmark of osteoporosis, with increasing incidence with age. Fragility fractures are a growing health issue and are associated with a significant mortality rate.
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Related FAQs: Is a fracture the same as a broken bone?
What is the difference between primary and secondary osteoporosis?
Primary osteoporosis is when there are no underlying factors responsible for thinning bones and is associated with the process of normal aging.
There are two types of primary osteoporosis:
- Type I, aka post-menopausal osteoporosis (as much more common in women): mainly affects trabecular bone and is characterised by vertebral and wrist fractures
- Type II, aka senile osteoporosis: age-related and typically affects people over 70 years of age. It affects men and women, but is more common in women, and is characterised by fractures of the hip, humerus, and tibia.
Secondary osteoporosis is when weakened bones are a side effect of something such as medications or health conditions (like malabsorption syndrome, which could inhibit the absorption of calcium and lead to osteoporosis).
Related FAQs: How is osteoporosis diagnosed?
Is a fracture the same as a broken bone?
Yes, the words ‘broken bone’ and the words ‘fractured bone’ mean the same thing.
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Related FAQs: What are fragility fractures?
How does osteoporosis affect the body?
Osteoporosis is where inevitable age-related bone loss or symptomatic bone loss of an underlying cause is not mitigated by the formation of new bone and there is inadequate bone mineral density reserve.
This loss of bone density increases the risk of fractures. Fractures can be in the form of a break (ie. hip fracture) or a collapse (e.g., compression fracture of the vertebrae).
The most common fracture sites are:
- Hip fractures
- Vertebrae (spinal fractures)
- Wrist fractures
- Forearm fractures
- Shoulder fractures
Spinal fractures can cause loss of height due to curvature of the spine. Hip fractures carry an elevated risk of mortality.
Why not take our test and see which areas you can take action in to improve your bone health?
Related FAQs: What are fragility fractures?
What can I do to improve my bone health?
Welcome to the beginning of your journey to better bone health. Our short questionnaire will calculate the current condition of your bone health and, based on your answers, predict where your bone health might be in the future. We will then suggest a strategy for you to move forward to a life free from osteoporosis.