How ACL Tears Really Happen (Most Involve No Contact)

The ACL Buckle You See Is Not the Injury, It's the Aftermath #shorts Most #ACLtears happen with nobody touching the athlete. Research that analyzed real injury videos suggests that buckle is not the injury itself. It is the aftermath. Your anterior cruciate ligament (ACL) is a short, strong rope inside the knee that ties your shin bone (tibia) to your thigh bone (femur). It keeps the shin from sliding forward and helps control rotation. When the knee is bent, the rope has some slack. As the knee straightens, that slack disappears and the ligament is pulled tight. The classic non-contact injury happens in a split second: An athlete lands with the knee almost straight, or plants a foot and cuts. The shin slides forward under the thigh bone. The knee caves inward, what surgeons call valgus collapse. The leg twists while the foot stays planted on the ground. Because the rope is already tight, there is nowhere left to go. The ligament fails, often with a pop the athlete feels or hears, and then the knee gives way. Much of what we see on the replay happens after the ligament has already torn. Positions that load the ACL can be trained. Prevention programs teach athletes to land and cut with the hips and knees bent and to keep the knee from collapsing inward, plus hip and hamstring strength work. For colleagues: video analysis points to valgus and internal rotation at initial contact, so technique coaching belongs in every prevention program. SHARE your #kneeinjury experience & insights #SportsMedicine #Orthopaedics . 📲 SUBSCRIBE NOW for new #surgery videos 𝗖𝗢𝗥𝗬 𝗖𝗔𝗟𝗘𝗡𝗗𝗜𝗡𝗘, 𝗠𝗗 | Orthopedic Surgeon · Franklin/Nashville, Tennessee 🌐 corycalendinemd.com/ 📅 Free joint replacement guide: corycalendinemd.com/free-joint-replacement-guide/ 🌐 See Dr. Calendine in your Google & AI search results: corycalendinemd.com/preferred 📍 Bone and Joint Institute of Tennessee · 3000 Edward Curd Lane, Franklin, TN 37067 📞 (615) 791-2630 About Dr. Cory Calendine, MD - 3000 Edward Curd Lane, Franklin, TN 37067 In the operating room, I get to perform more than 700 hip & knee replacement surgeries each year. From LIVE surgical demos to viral video highlights, together let's explore - react - discuss all things related to bone and joint health. #orthopedicsurgeon #jointreplacement THANK YOU for your comments, questions and suggestions. If there’s a medical topic or question you want me to discuss, please comment below. We are building a library of orthopedic medical video content focused on your requests and responses. 📽️ Watch latest hip & knee surgery videos ▶️    / @bonedoctor_youtube   𝐋𝐄𝐓'𝐒 𝐂𝐎𝐍𝐍𝐄𝐂𝐓: TikTok ▶️ www.tiktok.com/@corycalendinemd LinkTree ▶️ linktr.ee/corycalendinemd 𝐃𝐈𝐒𝐂𝐋𝐀𝐈𝐌𝐄𝐑𝐒: Opinions expressed are solely my own and do not express the views or opinions of my employer. Information in this video is not intended or implied to be a substitute for professional medical advice, diagnosis and/or treatment. All content [images, digital graphics, text, and other information] contained in this video is for general information purposes only and does not replace or substitute for a consultation with a qualified physician or health professional.