### Patient: Doctor, I've been having swelling and pain in my knee joint for the past few days. It's difficult for me to bend or straighten my leg. 
### Doctor: Based on your symptoms, it's possible that you have joint effusion. To confirm this, we need to perform a radiographic imaging procedure. This may involve a plain X-ray or an MRI, depending on the severity of your condition. We may also recommend physical therapy exercises or the application of a splint to relieve your symptoms. Additionally, we may need to examine your foot and recommend other non-OR therapeutic procedures on your musculoskeletal system.