brebre321,
we hear from the endocrinologists who do research that it is best to begin treatment for osteoporosis with an anabolic medication. Tymlos comes to mind in your situation because it works quite well in the femoral neck.
Fosamax and Tymlos work through different mechanisms.
When we build bone naturally there are cells (osteoclasts) that are drawn to damaged bone. These cells clear out the weakened bone and call up another type of cell (osteoblasts) that build bone on the cleaned surface.
Fosamax stops the cells that break bone down. It helps prevent fracture by collecting older damaged bone. This bone is more brittle, less vascular, but it is thicker bone than you'd have if you didn't take anything, and so, can prevent fracture.
Tymlos increases the number of cells that build bone dramatically. Those cells form a unit with the cells that break bone down. This bone is vascular, a little more flexible to resist fracture and thicker than Fosamax-bone.
Your physician knows things about your health that aren't evident to us, but you might ask them about a prescription for Tymlos.