What is the difference between patellofemoral pain syndrome, chondrosis, arthrosis and osetoarthritis? my mri says chondromalacia patella and meniscus tear on posterior horn. does it mean i have pfps or chondrosis or arthrosis or osteoarthritis?

Rather than trying to label your problems, you need to respond to the MRI outcomes. An orthopedic surgical consultation is in order. You might be a candidate for a cortisone or hyaluronic acid injection to the knee, and if physical therapy does not help turn the corner, a surgery might be indicated.

The main finding on your MRI is the meniscus tear. Both meniscus tear and chondromalacia patella are likely a direct result of degenerative joint disease. Treatment is dependent on correlation with symptoms. In this instance, you need a physician to listen to your history and correlate it with your physical exam to provide you the best treatment and outcome.