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4 Seniors: Staying mobile longer

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If you're a baby boomer suffering from knee pain or an old knee injury, you're far from alone. 

This active generation still wants to go to zumba class or zoom down the ski slope and that's leading to more knee surgeries.

Dr. Todd Olson from St. Anthony's Bone and Joint Hospital stopped by to talk about a few signs to know if you need a knee replacement.