My penile Implant is missing something besides the Girth and Length. I was wondering if anybody has tried using Viagra along with the Implant to get some blood in the Penis to get some kind of ' Horniness"?

I had surgery for Prostate Cancer in 2004 and had the Penile implant surgery in 2008. The implant has been better then nothing but it seems that something is missing. I don't seem to have the Girth or the Length. Also the sensation of " Horniness" isn't there like when your Penis is engour...