I Had A Partial Knee Replacement 10/19/17. I Had To

I had a partial knee replacement 10/19/17. I had to have a knee manipulation 12/22/17. Got through the pt ended up with great range of motion. Pain started increasing again had orthopedic consultant. He suggested a total knee replacement. Was able to walk around six flags with minimal pain over the summer. Started walking 1-3 miles a day on 9/17/18. My left side of my knee started hurting really bad. I am going to have a arthoscope on 10/19. Could I have torn my meniscus?