Knees take a pounding. When those knees suffer from joint diseases such as arthritis, the pain can be debilitating, which is why artificial knees are one of the most common prosthetic implants. According to the Agency for Healthcare Research and Quality, in 2017, more than 754,000 knee replacements were performed in the United States. But what do you know about the history of these important biomedical devices? Test your knowledge in this ASME quiz.