Osteoporosis
What is osteoporosis?
Osteoporosis is a condition characterised by a decrease in bone density, resulting in weak and fragile bones that are prone to fractures, even with minor impact or trauma. Common sites for fractures associated with osteoporosis include the wrist, spine, and hip bones.
Osteoporosis does not present specific symptoms or warning signs. Bones gradually lose their strength without noticeable changes until fractures occur. Changes in joint appearance may be observed, indicating the presence of osteoporosis. It is considered a “silent threat” that should be monitored and detected early to prevent fractures and other potential complications.
Osteoporosis and Osteosarcopenia
What is sarcopenia?
Sarcopenia is a condition characterised by the loss of muscle mass and strength, which affects physical capabilities. It can be caused by various factors, such as decreased muscle usage, age-related cellular deterioration, nutritional deficiencies, and genetics.
- The decline in muscle mass and strength typically begins around the age of 30, particularly affecting type 2 muscle fibers or fast twitch fibers, which can decrease by up to 45% by the age of 80.
- In individuals aged 50 to 60 years, there is an average annual decline in muscle mass of 1-2% and a decline in muscle strength of 3-4% per year.
- From the age of 60 to 70, there is a significant loss of muscle mass, reaching up to 3%, with the rate of loss increasing as age advances.
This condition is considered a geriatric syndrome, commonly affecting one in three older adults. Individuals with sarcopenia are at higher risk of falls, leading to an increased incidence of fractures, as well as a decreased ability to perform activities of daily living, resulting in a significant impact on their quality of life and mental well-being.
When osteopenia, osteoporosis, and sarcopenia occur simultaneously, a distinct group of diseases emerges in the elderly population known as osteosarcopenia.
Osteosarcopenia is characterised by a continuous decline in both bone mass and muscle mass, accompanied by a decrease in strength and functional performance of the muscles as individuals age. This leads to various associated risks, including an increased likelihood of falls, fractures, physical impairments, decreased quality of life, and elevated mortality rates.
Risk Factors for Osteoporosis
Age:
Peak bone mass is achieved around the age of 30, after which bone density gradually declines with increasing age due to reduced bone formation compared to bone resorption. After the age of 50, both men and women experience an accelerated loss of bone mass.
Gender:
Females are at higher risk of developing osteoporosis and experiencing more severe bone loss compared to males. This is due to females having lower bone mass (10-30% less than males) and experiencing rapid bone loss during menopause, which affects both bone density and bone structure, leading to decreased bone strength.
Genetics:
Individuals with a family history of osteoporosis are more likely to develop the condition themselves.
Nutrition:
Factors such as low protein intake, inadequate calcium consumption, excessive caffeine or carbonated beverage consumption can lead to insufficient nutrients for bone formation.
Body Shape and Posture:
Individuals with a body mass index (BMI) below 19, poor posture, and limited mobility are at higher risk of osteoporosis. Frequent falls are also associated with this condition.
Chronic Conditions:
Certain medical conditions such as endocrine disorders, inflammatory diseases, kidney disease, liver disease, malabsorption disorders, and cancer can contribute to the development of osteoporosis.
Alcohol:
Excessive alcohol consumption should be avoided as it accelerates bone loss and weakens muscle strength.
Smoking:
The nicotine in cigarettes negatively affects bone formation, increasing the risk of osteoporosis.
Physical Inactivity:
Lack of exercise, sedentary lifestyle, low physical activity, and immobility increase the risk of osteoporosis. Engaging in weight-bearing exercises such as brisk walking, jogging, dancing, and maintaining good balance can help prevent falls and reduce the risk of fractures in older adults. Regular exercise of at least 3 days per week is recommended.
It is important to address these risk factors and adopt a healthy lifestyle to maintain optimal bone health and reduce the risk of osteoporosis.
Preventing Osteoporosis
- Consuming foods rich in calcium, such as dairy products, yogurt, cheese, sardines, salmon, tofu, dried fish, powdered shrimp, and powdered fish, can help strengthen bones.
- Supplementing with vitamin D can enhance calcium absorption. Foods high in vitamin D include fortified milk products, egg yolks, and fatty fish such as salmon, tuna, and sardines.
How can osteoporosis be diagnosed?
There are several methods for diagnosing osteoporosis. The most common method used today is Bone Mineral Density (BMD) measurement. This test assesses the strength of bones by using low-energy X-rays to produce images of bone tissue. It is a quick, accurate, and safe method for early detection of osteoporosis.
The DEXA (Dual Energy X-ray Absorptiometry) scanner is a popular type of BMD measurement device used to assess bone density in areas commonly affected by osteoporosis, such as the spine, hip bones, and wrists.
What is a DEXA Scanner?
A Dual Energy X-ray Absorptiometry (DEXA) scanner is a diagnostic tool used to measure bone density. It utilizes low-energy X-rays at two different energy levels to assess the density of bone mass. The amount of radiation used is extremely low, making it safe and highly accurate. The World Health Organization (WHO) has designated DEXA scanning as the standard method for diagnosing osteoporosis.
There are two types of DEXA scanners:
- Central Device: This device is used to scan the central axis of the body, specifically the spine and hip bones. It is the standard method for diagnosis.
- Peripheral Device: This device is used to scan peripheral areas such as the wrist and ankle. It is commonly used for screening purposes.
What are the advantages of measuring bone density?
- Provides information about whether bones have normal or low bone density, indicating the presence of osteoporosis and the need for treatment or bone-strengthening interventions.
- Helps identify the risk and trends for future bone-related diseases, allowing for preparedness and prevention measures. For example, identifying the risk of fractures following falls.
- Provides guidance on appropriate practices for maintaining bone strength and precautionary measures tailored to each individual.
- Serves as a baseline for future comparisons and assessments of bone health.
- DEXA scanning is a convenient and fast method that uses low levels of radiation, ensuring safety and accurate results.
Frequency of Bone Density Testing
Osteoporosis is a silent and highly dangerous condition among older adults, especially those who are unaware of their bone density status. This lack of awareness can lead to a disregard for preventive measures and appropriate treatment. Therefore, it is crucial to undergo regular bone density testing as a screening method to reduce the risk of severe fractures and disability. Therefore, every older adult, including those with the mentioned risk factors, should receive bone density testing every 1-2 years to proactively monitor their bone health and ensure a safe and secure quality of life.
Who should undergo bone density testing?
- Women aged 65 years and older, and men aged 70 years and older.
- Women who have reached menopause and are younger than 65, with additional risk factors as mentioned above.
- Men who are younger than 70, with additional risk factors as mentioned above.
- Individuals with a family history of osteoporosis.
- Individuals with a history of non-severe fractures due to accidents.
- Individuals with related chronic conditions such as rheumatoid arthritis, hyperparathyroidism, diabetes, chronic inflammatory diseases, and others.
- Individuals taking medications that impact bone density, such as corticosteroids, anti-seizure medications, cancer treatments, and others.
- Individuals engaging in risky behaviors such as smoking, excessive alcohol consumption, regular tea or coffee consumption, carbonated beverage consumption, and lack of physical activity.
Preparation for Bone Density Testing
• On the day of the test, you can eat and drink as usual.
• Remove all metal jewelry before the test. If you have any metal implants, such as pacemakers or joint replacements, it is important to inform the staff beforehand.
• Notify the staff if you are pregnant or suspect that you might be pregnant.
• If you have previously swallowed a contrast agent or received a radiopaque substance for a CT scan, it is advisable to consult a doctor to schedule the test appropriately.
• During the test, you will lie down on a bed, and the staff will help position your body correctly before the examination begins.
• The testing process typically takes approximately 10-15 minutes, depending on the number of areas being examined.