As of July 2015, knee joint images are available from WebMD, MedlinePlus and the American Academy of Orthopaedic Surgeons' website. WebMD has one close-up image and another that displays the joint's location in relationship to the upper and lower leg. The bones, ligaments and menisci in the photo have labels.
MedlinePlus also shows two images. Users can view the parts of a normal knee from a side perspective. A frontal picture of the knee joint reveals location and causes of common knee pain. These include arthritis behind the knee and bursitis in the front. The AAOS presents several knee images, such as normal front and side views, as well as pictures of fracture, dislocation and anterior cruciate ligament, or ACL, injury.