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

The actress is at work on the set of Cougar Town following a planned minor surgery on her knee

Source: http://feeds.people.com/~r/people/headlines/~3/kexuYMy9dzQ/0,,20465723,00.html

Cinthia Moura Claudette Ortiz Coco Lee Connie Nielsen