The knee is a common site of pain in athletes because of the tremendous forces that it must endure. There are various parts to a knee such the tendon, bursa, and meniscus. Injury to these knee joint structures can cause pain.
This video contains an artist's representation of what bone looks like at the microscopic level. While many think that bone is simply a solid piece of calcium, it is actually a living, changing tissue with blood vessels and various small areas of open space.
This animated video not only shows a knee arthroscopy from start to finish, but gives a representation of what the surgeon sees through the tiny camera during arthroscopy. It also provides a view of the anatomy of the knee joint and how it works and moves.
This video shows an animation of the normal anatomy of bone and what occurs to bone that is affected by osteoporosis. It also explains why osteoporosis is more likely in to occur in women and as we age.
Athletes commonly tear or rupture the anterior cruciate ligament in the knee and require surgery to repair it. The narrator is this 3D animation explains how the patellar tendon is used to reconstruct the ACL.
Originally published as a patient activity, this animation describes the step-by-step process involved in knee replacement surgery. It shows many of the considerations that orthopedic surgeons face with an artifical knee surgery.
A physician describes what takes place during rheumatoid arthritis and explains how RA is an autoimmune disease in this video. In rheumatoid arthritis, the immune system acts inappropriately and attacks the structures inside of joints. This immune system attack leads to the characteristic RA symptoms of pain, inflammation, joint stiffness and joint deformity (destruction).