My mom's dog had a hernia that was repaired at the same time as her spay. The incision to fix the hernia was only slightly larger than she would have had for the spay alone. She did well with her recovery and was walking around two days later like nothing had happened.
The biggest risk with the teeth cleaning, spay and hernia repair all come from the anesthesia it's self. As long as you do pre-op blood work to make sure the dog is healthy and your vet is well versed in anesthesia protocols for toy breeds, then everything should be just fine.
__________________  Don't get your knickers in a knot. Nothing is solved and it just makes you walk funny. |