It may not seem bad now but I think you will regret it later if you dont get the surgery. Even though some dogs limp and then continue playing it probably doesnt feel real great when it pops out. Also she could be putting more weight on the other leg making that one also prone to early arthritis. You can also be at risk for cruciate ruptures which are very expensive to fix also. Its your choice but a 3/4 I would fix.
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