Hello, my name is Rhonda I'm 40 years old and was diagnosed with avn 10+ years ago. I have had no major surgeries but they did drill a few times. Anyway I'm not seeing a Dr as of now due to the one I was seeing quit all together, but my problem is I have forgotten how to use my knees I'm so used to holding onto something especially off of the toilet and I tried just pulling myself up but I forget how to use them or something. Its kinda weird and don't really know how to explain it. Does anyone else have this problem? By the way I have avn in both knees and hips and its starting in my ankles and elbows.