The Papers Presented at the Annual Meetings of The Knee Society Symposium includes selected manuscripts originally presented at the 2010 Knee Society Members Meeting held in Rochester, Minnesota in September 2010 and the 2011 Open Scientific Meeting of The Knee Society held in San Diego, California in February 2011. Each paper published in this symposium has undergone a rigorous peer-review process that ensures focused, informative, and scientific meaningful manuscripts. My great thanks are extended to the dedicated staff at CORR for their valuable work in guiding authors through that review process.