Besides the 20% for right knee I also have 10% right hip, 10% lumbar, causal to my service connected knee. I am also rated at 50% for depression. Several of these need to be raised and I need to get to get a rating for my left knee. I tried to go through Voc rehab and they told me that I was unemployable. I had the guy write me a letter stating that I was unemployable and I had that with me for my C & P and showed it to the hacks. That was the biggest factor in my getting TDIU total and permanent. I am already having problems with the new knee. I can barely bend it and my foot is pointing further to the right.I haven't been able drive in quite some time due to the the meds I am on such a variety of meds (including 60mg morphine)