Welcome to YT, so sorry for your loss of Duncan, I too lost my Yorkie earlier this year. I wish you a quick recovery, I've had both knees replaced 8 years ago, and I wish you had him beside you, Megan really made my recoveries better. Best of luck with a new puppy when you get one.
Cheers Quad & Gina
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Assume Nothing, Question Everything, Start Thinking!
RIP Megan 3/1998-5/28/2013