After being on Fosamax for 6 years, my yearly bone scan didn't show much difference in my bone loss. I started wondering about the pain in my knees, right hip, hands and fingers. It wasn't until I started noticing my index and little fingers starting to grow in the opposite positions and hardening around the first joint, and shooting pains that I started looking up side effects of Fosamax. I have taken myself off this medication since reading that it can cause joint pain. I'm not sure this is the problem with my fingers, but time will tell. Who wants crooked fingers caused by Fosamax.