Non HRT Options for the Treatment of Osteoporosis
Osteoporosis is now a treatable condition with an abundance of evidence for the efficacy of certain therapeutic strategies in preventing recurrent fractures. Most of these treatments act by improving bone mineral density through inhibition or reduction of bone resorption. For those women who are unable to take HRT; bisphosphonates, calcium, vitamin D, calcitriol or calcitonin may confer certain benefits. The bisphosphonate alendronate reduces both vertebral and long bone fractures, an effect seen soon after starting treatment. The changes in BMD and fracture reduction are less with the use of etidronate but it is certainly beneficial in reducing recurrent vertebral fracture. In the elderly calcium and vitamin D in combination can reduce non-vertebral and hip fracture and supplemental calcium of 1 g/day has been predicted to reduce bone loss and thus hip fractures by 22%. Evidence that calcitriol or calcitonin reduce fracture incidence is not good but calcitonin has been shown to have analgesic properties in those with acute vertebral fracture. The role of calcitriol is less certain and should be reserved for women with vertebral fractures in whom HRT or bisphosphonates cannot be used.