Why Is Courteney Cox a 'Cougar' with a Cane?

Courteney Cox has a new accessory of sorts.
The Cougar Town star was spotted walking around the set of her ABC show Thursday with the help of a cane.
So what's up? Cox, it turns out, has a bum knee thanks to a recent surgery.
"The minor knee surgery was planned," a rep for the actress tells PEOPLE. "[The cane] will be written

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