I've raised Labs (rescued hunting, non-hunting dogs in my clinic) for nearly 30 years and have been doing surgery on ruptured cruciate ligament injury, as a specialist for nearly 20 years so I offer this prespective to my friends & clients - this is an athletic injury, as in humans, and most patients repond well to surgery if they are in good shape & have good rehab (just like people!). NSAIDs and pain relief meds can make affected dogs comfortable, but active, athletic dogs recover best with surgery - at the very least, owners should get a consult with a surgery specialist trained to treat these patients (just like we do as human patients!). Thanks for reading, just joined today and was reading posts about inbjured knees in hunting dogs.