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- Osteoporosis facts
- What is osteoporosis?
- What are osteoporosis symptoms and signs?
- What are the consequences of osteoporosis?
- Why is osteoporosis an important public-health issue?
- What factors determine bone strength?
- What are osteoporosis risk factors and causes?
- What tests do health-care professionals use to diagnose osteoporosis?
- What types of specialists treat osteoporosis?
- Who should have bone density testing?
- What is the treatment for osteoporosis, and can osteoporosis be prevented?
- Exercise, quitting cigarettes, and curtailing alcohol
- Calcium supplements for osteoporosis
- Vitamin D for osteoporosis
- Can adding certain foods to one's diet help to prevent osteoporosis?
- Are there foods to avoid when it comes to osteoporosis?
- Hormone therapy (menopausal hormone therapy)
- Medications that prevent bone loss and breakdown
- Choosing an osteoporosis medication
- Prevention of osteoporosis due to long-term corticosteroids
- Monitoring osteoporosis therapy
- Prevention of hip fractures in elderly people with osteoporosis
- What are complications of osteoporosis?
- What is the prognosis (outlook) for patients with osteoporosis?
Quick GuideWhat Is Osteoporosis? Treatment, Symptoms, Medication in Pictures
What tests do health-care professionals use to diagnose osteoporosis?
A routine X-ray can reveal osteoporosis of the bone because the bones appear much thinner and lighter than normal bones. Unfortunately, by the time X-rays can detect osteoporosis, at least 30% of the bone has already been lost. In addition, X-rays are not accurate indicators of bone density. Thus, the appearance of the bone on X-ray often is affected by variations in the degree of exposure of the X-ray film.
The National Osteoporosis Foundation, the American Medical Association, and other major medical organizations recommend a dual-energy X-ray absorptiometry scan (DXA, formerly known as DEXA) be used for the diagnosis of osteoporosis. DXA typically measures bone density in the hip, the spine, and the forearm. The test takes only five to 15 minutes to perform, exposes patients to very little radiation (less than one-tenth to one-hundredth of the amount used on a standard chest X-ray), and is quite precise.
The bone density of the patient is compared to the average peak bone density of young adults of the same sex and race. This score is called the "T score," and it expresses the bone density in terms of the number of standard deviations (SD) below peak young adult bone mass.
- Osteoporosis is defined as a bone density T score of -2.5 or below.
- Osteopenia (between normal and osteoporosis) is defined as bone density T score between -1 and -2.5.
It is important to note that while osteopenia is considered a lesser degree of bone loss than osteoporosis, it nevertheless can be of concern when it is associated with other risk factors (such as smoking, cortisone steroid usage, rheumatoid arthritis, family history of osteoporosis, etc.) that can increase the chances for developing vertebral, hip, and other fractures. In this setting, osteopenia may require medication as part of the treatment program.