Sorry to hear about Tini, I can understand your worries. Schatzie has been wonderful after her surgery to correct her LP and I pray that Tini has the same success.
Notify your breeder asap and supply her a copy of the vet's written report and if possible a copy of the xray's.
Schatzie was under a warranty also but I was too attached and bonded to send her back to our breeder. I had personally had some heart aches before Schatzie with some previous pups so my heart just couldn't handle letting go of my Schatzie.
I am thankful I didn't because she's a happy dog on all four legs again!
Hugs and thoughts go out to you and Tini.
