I broke the fifth metatarsal bone in right foot . I was in a hard cast for five weeks, them walking air boot for four weeks, all nine weeks non weight bearing. I am now allowed to walk with the boot, using crutches as needed until comfortable. Problem I am having is swelling at the lower left side of my knee that feels uncomfortable and unstable when trying to walk in it. The swollen area isn t squishy, mostly firm. Should I be concerned? Should I wrap it when walking for support or stay off of it? I don t want another problem now that my bone is almost completely healed. Thank you.