Osteoporosis: Symptoms, Causes & Treatment

Osteoporosis is a chronic disease characterized by progressive loss of bone mineral density and deterioration of bone microarchitecture, making bones fragile and susceptible to fractures from minor falls or injuries. This condition develops when bone loss outpaces bone formation, a process that naturally accelerates after age 30.

The hip, spine, and wrist are the most commonly fractured sites. Osteoporosis is called the "silent disease" because it often presents no symptoms until a fracture occurs, making early detection and prevention critical. In Jordan and the Middle East, osteoporosis affects a significant proportion of postmenopausal women and elderly individuals of both sexes, presenting a notable public health burden.

Diagnosis is confirmed through bone mineral density measurement (DEXA scan), which provides a T-score indicating the severity of bone loss. Treatment focuses on slowing bone loss, strengthening remaining bone, and preventing fractures through supplementation, medications, and lifestyle modifications.

In early stages, osteoporosis typically causes no noticeable symptoms, earning it the label "silent disease." Many people remain unaware they have osteoporosis until they experience a fracture. However, in advanced stages, certain signs may indicate disease progression, particularly in elderly women and older men.

• Back and neck pain: Often resulting from vertebral collapse or compression fractures.
• Loss of height and stooped posture: Repeated vertebral fractures can cause progressive spinal curvature (kyphosis).
• Bones fracturing easily: From minor falls, severe coughing, or sneezing.
• Hip or wrist pain following a fall: May indicate fracture.
• Gradual loss of postural integrity: Progressive forward bending.
• General weakness and fatigue: May accompany advanced cases.
• Discomfort when sitting or standing for prolonged periods: Due to weakened bone structure.
• Recurrent fractures without clear cause: A strong indicator of osteoporosis.

• Estrogen deficiency: The sharp drop in estrogen after menopause dramatically accelerates bone loss, particularly in the first five years.
• Testosterone deficiency: Older men with low testosterone may develop weakened bones.
• Inadequate calcium and vitamin D: Calcium is essential for bone formation, and vitamin D enables its absorption. Deficiency weakens bones progressively.
• Physical inactivity: Bones require weight-bearing and stress to maintain strength; sedentary lifestyle accelerates bone loss.
• Certain medications: Corticosteroids (e.g., prednisone), thyroid medications, and drugs affecting calcium absorption.
• Chronic diseases: Liver disease, kidney disease, rheumatoid arthritis, and gastrointestinal disorders reduce nutrient absorption.
• Advanced age: The ability to form new bone decreases with aging.
• Other hormone deficiencies: Including thyroid hormones and sex hormones crucial for bone health.

• Female sex: Women are more susceptible, especially postmenopausal.
• Advanced age (>50 years): Risk increases progressively.
• Family history: A family history of osteoporosis increases personal risk.
• Small bone frame: People with naturally lower bone mass are at higher risk.
• Smoking: Reduces calcium absorption and accelerates bone loss.
• Excessive alcohol use: Impairs calcium absorption and disrupts hormone balance.
• Prolonged immobility: Sedentary lifestyle and lack of weight-bearing exercise are significant risk factors.
• Protein deficiency: Inadequate protein intake compromises bone formation and repair.
• High salt and caffeine intake: May increase urinary calcium loss.
• Relative obesity: Extra weight stresses bones but doesn't always confer adequate protection.

Early diagnosis of osteoporosis relies on thorough clinical evaluation, laboratory tests, and specialized imaging. The goal is to measure bone mineral density and assess fracture risk.

• Clinical evaluation: Detailed history including medical and family history, current medications, lifestyle factors, and physical signs such as height loss or stooped posture.
• Bone Mineral Density (DEXA) test: The gold standard test producing a T-score: above -1 is normal, between -1 and -2.5 indicates osteopenia, below -2.5 confirms osteoporosis.
• Blood tests: Including calcium, phosphate, thyroid hormone, vitamin D (25-OH vitamin D), and other biochemical markers.
• Liver and kidney function tests: To rule out chronic diseases affecting mineral absorption.
• X-ray imaging: May reveal old fractures or vertebral deformities not previously detected.
• Bone turnover markers: Blood and urine tests reflecting the rate of bone resorption and formation.

Medications

• Bisphosphonates: Such as alendronate and risedronate. Slow bone loss. Available orally (daily or weekly) or by injection. Side effects may include gastrointestinal upset.
• Denosumab: Injection given every six months. Inhibits bone breakdown and increases density. Highly effective in postmenopausal women.
• Parathyroid hormone (Teriparatide): Daily injection stimulating new bone formation. Used in severe cases.
• Raloxifene: Estrogen-like medication reducing bone loss, particularly in the spine.
• Calcium and vitamin D supplements: Essential supplementation. 1000-1200 mg calcium daily and 600-800 IU (or more) of vitamin D daily based on levels.
• Hormone Replacement Therapy (HRT): May be considered in select postmenopausal cases, but requires careful monitoring due to potential risks.

Procedures and Surgery

• Vertebroplasty/Kyphoplasty: For painful vertebral fractures. Cement injection stabilizes the fractured vertebra and alleviates pain.
• Surgical fracture repair: For hip fractures or complex fractures, surgery may be necessary.
• Physical rehabilitation: Post-fracture or post-surgical therapy to restore strength and mobility.

Lifestyle Modifications

• Regular exercise: Weight-bearing exercises (walking, running, dancing) and resistance training (weight lifting) strengthen bones and muscles.
• Healthy diet: Foods rich in calcium (dairy, fatty fish, leafy greens), protein, and vitamins.
• Sun exposure: 15-30 minutes daily to stimulate natural vitamin D production.
• Smoking cessation: Smoking significantly accelerates bone loss.
• Reduce alcohol: Excessive alcohol weakens bones.
• Fall prevention: Improve home lighting, avoid slippery surfaces, use assistive devices when needed.
• Maintain healthy weight: Avoid severe weight loss and excessive obesity.

• Hip fractures: Among the most serious complications. Cause permanent mobility loss, severe disability, and risk of respiratory complications and thromboembolism. Mortality rate reaches 20% in the first year post-fracture.
• Vertebral fractures: Cause chronic pain, spinal deformity, progressive height loss, and pressure on internal organs.
• Wrist fractures: Affect hand functionality and lead to long-term mobility complications.
• Permanent disability: Major fractures may result in loss of independent ambulation.
• Depression and social isolation: Chronic pain and disability may lead to depression and social withdrawal.
• Surgical and anesthetic complications: Fractures requiring surgery carry risks of anesthetic complications, infection, and thrombosis.
• Recurrent fractures: After one fracture, the risk of additional fractures increases substantially.
• Malnutrition: Pain and disability may compromise nutritional intake.

• Consume adequate calcium: Target 1000 mg daily for adults and 1200 mg for women over 50 and men over 70. Sources include dairy, cheese, yogurt, fish, and supplements if needed.
• Get sufficient vitamin D: At least 600-800 IU daily. Sunlight, fatty fish, and eggs are good sources.
• Exercise regularly: At least 150 minutes of moderate activity weekly, including weight-bearing and resistance exercises.
• Quit smoking: Smoking reduces calcium absorption and accelerates bone loss.
• Limit alcohol: No more than one unit (women) or two units (men) daily.
• Maintain healthy weight: Both obesity and severe underweight increase risk.
• Reduce salt and caffeine intake: May increase urinary calcium loss.
• Regular screening: Women over 65 and men over 70 should undergo DEXA testing.
• Prevent falls: Improve lighting, avoid slippery surfaces, wear appropriate footwear, use a cane if needed.
• Discuss medications with your doctor: Some drugs affect bone. Ask about alternatives.