Repetitive Anxiety: While exceptional, repetitive strain around the knee can lead to strain fractures in persons with weakened bones or conditions like osteoporosis. The kneecap shields the joint, and beneath it lies articular cartilage, which cushions and smooths knee motion. “The cartilage resembles the white shiny substance on the chicken https://www.theorthopaedicandpainpractice.com/what-are-patella-fractures/