Hello and welcome to Ricky. Such a sweet Chihuahua!
Sadly they can commonly have knee problems and this one got hit with two of them. He had both a luxating patella and degenerated cruciate ligament.
He had a TTT which is a surgical correction to fix both at the same time. It went very well, and physio was the next step for the rehabillitation phase.
We set Ricky up with a home regime. He is doing really well and we look forward to getting him back to full health and function soon.
Keep up the good work mum and Ricky!