Q. My elderley cross Jack russell x border Terrier has torn his cruciate ligament on his stifle joint (left hind leg). He is 14 years old .
A. Torn cruciate ligament is a surgical condition. However, small dogs which are not suitable for surgery for various reasons (for example advanced age or concurrent diseases) can do well on long term anti-inflammatory medications only. It also depends how unstable is the stifle. You should talk to your vets about these two options and decide which one will be best for your dog.
A. You need to discuss different options with your vet. Sometimes smaller, quieter breeds can do on strict cage rest but often surgery is the answer.