Treatment for Osteopenia
Osteopenia treatment should be guided by fracture risk assessment using the FRAX tool, with pharmacological therapy (oral bisphosphonates as first-line) reserved for patients with 10-year hip fracture risk ≥3% or major osteoporotic fracture risk ≥20%, while all patients should receive lifestyle modifications, calcium, and vitamin D supplementation. 1, 2
Risk Assessment and Treatment Thresholds
The decision to treat osteopenia pharmacologically depends entirely on fracture risk, not bone density alone:
- Calculate 10-year fracture risk using the FRAX tool, which incorporates BMD and clinical risk factors 1, 2
- Pharmacological treatment is indicated when FRAX shows ≥3% hip fracture risk OR ≥20% major osteoporotic fracture risk 1, 2, 3
- Treatment should be strongly considered when T-score is below -2.0 with additional risk factors 2
- The presence of a vertebral fracture significantly increases future fracture risk and warrants treatment consideration 2
Special FRAX adjustments for glucocorticoid users:
- Multiply major osteoporotic fracture risk by 1.15 if prednisone dose >7.5 mg/day 1, 2
- Multiply hip fracture risk by 1.2 if prednisone dose >7.5 mg/day 1, 2
Non-Pharmacological Management (All Patients)
Every patient with osteopenia requires these interventions regardless of fracture risk:
Calcium and Vitamin D:
- Calcium: 1,000 mg/day for ages 19-50; 1,200 mg/day for ages 51+ (through diet or supplements) 1, 2, 3
- Vitamin D: 600 IU/day for ages 19-70; 800 IU/day for ages 71+ 1, 2, 3
- Target serum vitamin D level ≥20 ng/mL 1, 2, 3
Exercise:
- Regular weight-bearing exercises (walking, jogging, stair climbing) 1, 2, 3
- Resistance training exercises 1
- Balance training (tai chi, physical therapy, dancing) to reduce fall risk 2, 3
- Aim for at least 30 minutes of moderate physical activity daily 2
Lifestyle modifications:
- Smoking cessation 1, 2, 3
- Limit alcohol to 1-2 drinks per day maximum 1, 2
- Maintain healthy body weight (low BMI is an independent risk factor) 1, 2
- Implement fall prevention strategies including vision/hearing checks, medication review, and home safety assessment 1, 2
Pharmacological Treatment
For patients meeting FRAX treatment thresholds:
First-line therapy:
- Oral bisphosphonates (such as alendronate) are the recommended first-line treatment due to safety, cost, and efficacy 1, 2, 3
- Alendronate inhibits osteoclast activity, reduces bone resorption, and allows bone formation to exceed resorption at remodeling sites 4
- Low-quality evidence shows bisphosphonates in women with advanced osteopenia may reduce fracture risk 1
- The fracture reduction benefit is likely similar across all bisphosphonates 1
Alternative agents (if oral bisphosphonates not appropriate):
- IV bisphosphonates 1, 2
- Denosumab (for high-risk patients or bisphosphonate intolerance) 1, 2, 3
- Teriparatide (for high-risk patients) 1, 2
- Raloxifene (selective estrogen receptor modulator) 1, 2
Special Populations Requiring Earlier Intervention
Glucocorticoid users:
- Patients on long-term glucocorticoids, particularly >7.5 mg/day prednisone, should be considered for bone-modifying agents 1
- Reassess clinical fracture risk every 12 months 1, 2
- Common pitfall: Only 5-62% of patients on glucocorticoid therapy receive appropriate preventive therapies 1, 2
Cancer survivors:
- Baseline risks plus treatment-related bone loss warrant earlier intervention 1
- Cancer treatments causing hypogonadism accelerate bone loss 2, 3
- Bisphosphonates or denosumab are preferred agents 2, 3
- Perform dental screening exam before initiating bone-modifying agents to reduce osteonecrosis of jaw risk 1, 2
Chronic liver disease:
- Perform BMD testing 1, 2
- Assess for vitamin D deficiency, thyroid function, and hypogonadism 1
- Provide calcium and vitamin D3 supplementation 2
- Avoid anabolic steroids 2
Monitoring
Treatment response assessment:
- Repeat DXA every 2 years to monitor treatment response 1, 2, 3
- Do not perform BMD assessment more frequently than annually 1, 2, 3
- Assess medication adherence regularly (non-adherence is common and reduces effectiveness) 1
- When T-scores improve, consider discontinuation of bone-modifying agents and follow with periodic DXA scans 2
Critical Pitfalls to Avoid
Before starting treatment:
- Identify and treat secondary causes: vitamin D deficiency, hypogonadism, alcoholism, glucocorticoid exposure 1, 2
- Perform dental screening before bisphosphonates or denosumab 1, 2
During treatment:
- The risk of severe adverse effects increases with prolonged bisphosphonate use, so benefits most favorable when fracture risk is high 1
- FRAX has not been validated in HIV-infected persons and may underestimate fracture risk in this population 1
- Poor adherence is extremely common—address barriers proactively 1, 2