Since alendronate is to build bones, why does it put me at risk for femur fracture?

Quality of bone. The bone quality on alendronate is different than "normal" bone. There are certain types of femur fractures that are more commonly seen in individuals taking alendronate.

Related Questions

Is it unusual for 57 yr man to still be only light touch weight bearing 4 weeks post op femur fracture with rods +screw. Possibility of bone graft?

Dentistry and Hips. In dentistry, we always defer to the orthopedic surgeon. We cover all these patients with antibiotics prior to any dentistry. Your question should be answered by your surgeon. Dentistry always defers to the orthopedic surgeon. Read more...