Pharmacological Treatment and Monitoring of Osteoporosis
Pharmacological Treatment and Monitoring of Osteoporosis
The selection of medications for osteoporosis should consider the mechanism of action, effectiveness in increasing bone density, fracture risk reduction, contraindications, and potential side effects. Treatment should be individualized (tailored therapy).
Goals of Treatment
๐ Reduce the risk of fractures
๐ Slow or prevent bone loss
๐ Relieve pain from fractures
๐ Reduce disability
๐ Improve quality of life
Indications for Treatment
Postmenopausal women and men aged ≥ 50 years at high fracture risk should receive medication if any of the following are present:
๐ History of vertebral or hip fracture
๐ T-score ≤ -2.5 at the spine or hip
๐ T-score between -1.0 and -2.5 with a 10-year hip fracture risk ≥3% (using FRAX for Thailand)
๐ T-score between -1.0 and -2.5 with other fragility fractures (e.g., humerus, pelvis, wrist)
Types of Osteoporosis Medications
1. Antiresorptive Agents
These drugs primarily inhibit bone resorption, including:
๐ Estrogen
๐ SERMs
๐ Bisphosphonates
๐ Denosumab
2. Bone-Forming Agents
These stimulate bone formation (anabolic effect), including:
๐ Teriparatide
๐ Abaloparatide
3. Dual-Action Agents
These have both antiresorptive and bone-forming effects:
๐ Calcium, vitamin D analogs, vitamin K2 (mainly antiresorptive)
๐ Romosozumab (a newer “decoupling agent” that both increases formation and decreases resorption)
Combined Approach
Drug therapy should always be combined with non-pharmacological management, such as:
๐ Lifestyle modification
๐ Adequate calcium, vitamin D, and protein intake
๐ Regular exercise
๐ Fall prevention
Prevention of Osteoporosis
๐ Ensure adequate calcium and vitamin D intake
๐ Exercise regularly (weight-bearing and muscle-strengthening activities)
๐ Maintain healthy body weight (BMI 20-23 kg/m²)
๐ Avoid smoking and excessive alcohol or caffeine
๐ Manage underlying conditions causing secondary osteoporosis
Monitoring Treatment
๐ Bone Mineral Density (BMD) measurement using DXA (hip and spine) every 1-2 years
๐ Bone turnover markers (blood tests) at 3-6 months after starting treatment to assess response and adherence
Conclusion
Effective osteoporosis management requires individualized drug therapy combined with lifestyle changes and regular monitoring to optimize bone health and reduce fracture risk.
source : Dr. Tanawat Amphansap
**Translated and compiled by ArokaGO Content Team
Police General Hospital
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