Last updated: October 17, 2025 I've been pain-free on this artificial knee for 10 years. They told me it would last 10-15 years. I nodded like a good patient and then did what I always do- ride my bike a lot. Since January 1st, I've put down 5,000+ miles. Since July of 2024, about 8,000. That's lovely... until this year, when the knee started barking again.