RLC

I had total left knee replacement 10-02-2018 and believe me it's been 8 months and I became infected something awful suffered with unbelievable pain and swallowing with knots all over this left knee although it's been 8 months I'm barely able to walk well unbeknownst to me the VA calls me said they've scheduled me for an orthopedic appointment with doctor Doll chief orthopedic revision surgeon fron Emory asked why and was told this doctor had reviewed my past x-rays and saw something he wasn't dure of this has me a little worried because I'm just not sure I can go through another awful surgery like the first. I'm not sure in the event if I accept this revision surgery do I refill for an extension for convalesce 100%?just someone with experience in revision and how extension to my now convalesce pay thanks