This animation describes what a bunion is and the one of the possible surgeries used to correct it, namely a metatarsal osteotomy.

A physician describes what causes acne to develop and how it can lead to facial scars. She also describes several acne scarring treatments including collagen injections, dermal fat injections, dermabrasion, and laser skin treatments. The doctor also describes the role of skin transplant surgery and skin grafts in acne scar repair.

This narrated 3D animation shoes the anatomy of the knee and how this structure works to move the knee joint. Of special note are the anatomical orientations of the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) along with a description of how tendon surgery is performed.

This video describes the two types of osteoporosis, the symptoms that it may cause, the tests used to diagnose osteoporosis, and some treatment options. Note the estrogen replacement therapy mentioned in the video may not be appropriate for most patients.