Anterior Cruciate Ligament (ACL) Tearsenteenshttps://kidshealth.org/EN/images/headers/T-ACL-enHD-AR1.jpgACL injuries can happen in active and athletic kids when excessive pressure is put on the knee joint, resulting in a torn ligament.anterior cruciate ligament injury, ACL, torn ACL, knee injuries, knee pain, sports injury, injuries, common sports injury, hurt knee, torn knee ligament, sports medicine, sports rehab, intra-articular reconstructive surgery, extra-articular surgery, knee joint surgery04/21/201009/16/201909/16/2019Alvin Su, MD01/14/20198c642a43-5cbd-42c2-b5a2-1387d91a6f3chttps://kidshealth.org/ws/RadyChildrens/en/teens/acl-injuries.html/<h3>What Is the Anterior Cruciate Ligament?</h3> <p>The anterior cruciate ligament (ACL) is one of the ligaments in the <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/bones-muscles-joints.html/">knee joint</a>. A ligament is a tough, flexible band of tissue that holds bones and cartilage together.</p> <p>The ACL connects the bottom of the thighbone (femur) to the top of the shinbone (tibia). The ACL helps keep the knee stable.</p> <h3>What Is an ACL Tear?</h3> <p>The anterior cruciate (pronounced: KROO-she-ate) ligament can tear if an injury stretches it too much. The tear might be partial (through a part of the ACL) or complete (all the way through the ACL).</p> <p><img class="center_this" title="Knee with a torn ACL" src="https://kidshealth.org/EN/images/illustrations/ACLinjury_a_enIL.png" alt="Knee with a torn ACL" /></p> <h3>What Are the Signs &amp; Symptoms of an ACL Tear?</h3> <p>Most people who tear their ACL feel pain and a &quot;pop&quot; in their knee when the injury happens. Their knee usually gets swollen soon after the injury. After the swelling goes down, someone with an ACL tear usually can walk. But the knee may feel unstable and can &quot;give way&quot; and make the person stumble or fall.</p> <h3>What Causes an ACL Tear?</h3> <p>Most ACL tears happen during athletic activity. For example when someone:</p> <ul> <li>changes direction or twists the knee while running</li> <li>jumps and lands in a way that twists the knee</li> </ul> <p>The ACL also can tear if the knee is hit forcefully from the side.</p> <h3>Who Gets ACL Tears?</h3> <p>ACL tears happen most often during <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/sports-injuries.html/">sports</a>&nbsp;that have turning, cutting, and pivoting movements like <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/safety-skiing.html/">skiing</a>, <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/safety-soccer.html/">soccer</a>, <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/safety-football.html/">football</a>, <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/safety-basketball.html/">basketball</a>, and <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/safety-tennis.html/">tennis</a>. Girls tear their ACL more often than guys do.</p> <h3>How Is an Anterior Cruciate Ligament Tear Diagnosed?</h3> <p>To diagnose a torn ACL, health care providers ask about the injury and do a physical exam. During the exam, the health care provider presses on the knee and legs and moves them in certain ways. These tests can show if the ACL is torn.</p> <p>Health care providers also might order imaging tests like:</p> <ul> <li><a href="https://kidshealth.org/ws/RadyChildrens/en/teens/video-xray.html/">X-rays</a> to check for injuries to the bones</li> <li>an <a class="kh_anchor">MRI</a> to check the extent of an ACL tear and to see if the <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/knee-injuries.html/">knee has other injuries</a></li> </ul> <h3>How Is an ACL Tear Treated?</h3> <p>Right after the injury, an ACL tear is treated with:</p> <ul> <li>RICE: <strong>R</strong>est, <strong>I</strong>ce, <strong>C</strong>ompression (with an elastic bandage), and <strong>E</strong>levation (raising the knee)</li> <li>over-the-counter pain medicine such as acetaminophen (Tylenol or store brand) or ibuprofen (Advil, Motrin, or store brand)</li> </ul> <p>Most partial tears can be treated with bracing and <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/pt.html/">physical therapy (PT)</a>. A person might need to use crutches as the tear heals.</p> <p>Some complete ACL tears need surgery. The need for surgery depends on many things, including:</p> <ul> <li>the type of the activities (or sports) the person wants to do</li> <li>if the person is an athlete</li> <li>age</li> <li>other injuries to the knee</li> <li>if the knee &quot;gives way&quot; or feels unstable</li> </ul> <h3>What Happens During Surgery for a Torn ACL?</h3> <p><a href="https://kidshealth.org/ws/RadyChildrens/en/teens/acl-surgery.html/">ACL reconstruction surgery</a> uses a graft (piece of tissue) to reconstruct (rebuild) the ACL. The graft can be a tendon, from the patient's own body (called an <strong>autograft</strong>) or from someone else who donated the tendon (called an <strong>allograft</strong>).&nbsp;</p> <p>ACL repair surgery is usually done arthroscopically. This type of surgery is done using a tiny camera (called an arthroscope) and small instruments that are inserted through small incisions (cuts).</p> <p>Recovery from ACL surgery can take 6–12 months. If you have an ACL repair, you may use crutches and a leg brace after surgery. Some people might need a knee brace after that.</p> <p>Physical therapy is important to help the knee heal. PT helps to:</p> <ul> <li>improve range of motion and flexibility</li> <li>regain strength in the knee, thigh, and shin muscles</li> <li>reduce pain and swelling</li> <li>improve balance</li> </ul> <h3>How Can I Prevent Another ACL Tear?</h3> <p>If you had an ACL tear, there's a higher chance it might happen again. Training programs may help you avoid another ACL tear. These focus on neuromuscular training (NMT). NMT teaches movement patterns that lower the risk of injury, especially while jumping, landing, and changing direction. NMT programs include <a href="https://kidshealth.org/ws/RadyChildrens/en/teens/stretching.html/">stretching</a>, plyometrics (jump training), and balance training.</p> <p>Ask your care team if an NMT program, like PEP training, is right for you.</p> <h3>What Should I Do?</h3> <p>Recovering from an ACL tear takes time. It's normal to feel angry, frustrated, or down, especially if you can't play a sport you love.</p> <p>While you heal, try to find other ways to stay involved in sports, such as keeping score or being a team manager. Or, if you want to develop new talents besides playing sports, this is a good time to explore a new hobby like playing the guitar, painting, or drawing.</p> <p>To get the best treatment possible:</p> <ul class="kh_longline_list"> <li>Go to all follow-up visits and physical therapy appointments as directed.</li> <li>Follow the care team's instructions for at-home exercises.</li> </ul>Desgarros del ligamento cruzado anteriorEl ligamento cruzado anterior se puede desgarrar si se estira demasiado debido a una lesión. La mayoría de los desgarros del ligamento cruzado anterior ocurren durante la actividad deportiva. https://kidshealth.org/ws/RadyChildrens/es/teens/acl-injuries-esp.html/4d63253c-92e5-451b-be81-733453d3e09d
Jumper's KneeJumper's knee is an overuse injury that happens when frequent jumping, running, and changing direction damages the patellar tendon.https://kidshealth.org/ws/RadyChildrens/en/teens/jumpers-knee.html/16b92a66-48a6-4473-ba2e-87bbe0566229
Knee InjuriesHealthy knees are needed for many activities and sports and getting hurt can mean some time sitting on the sidelines.https://kidshealth.org/ws/RadyChildrens/en/teens/knee-injuries.html/0e348562-5958-4a91-96ad-c8affb5fff4f
Medial Collateral Ligament (MCL) InjuriesMCL injuries happen when excessive pressure is put on the knee joint, causing a torn ligament.https://kidshealth.org/ws/RadyChildrens/en/teens/mcl-injuries.html/644d3430-58bf-4fa4-a27d-a379712896fe
Safety Tips: BaseballBaseball is by no means a dangerous sport. But it can present a very real risk of injuries from things like wild pitches, batted balls, and collisions in the field.https://kidshealth.org/ws/RadyChildrens/en/teens/safety-baseball.html/64b5e79c-bf80-4a50-8084-f711cb03bde7
Safety Tips: BasketballIt's fun to play and great exercise, but basketball is also a contact sport, and injuries happen. To stay safe on the basketball court, follow these safety tips.https://kidshealth.org/ws/RadyChildrens/en/teens/safety-basketball.html/2189333a-d064-4af8-93db-5e43e490bed5
Slipped Capital Femoral Epiphysis (SCFE)A good, stable connection at your hip joint is what lets you walk, run, make that jump shot, and shake it on the dance floor. But in some teens – particularly those who are obese – the hip joint is weakened by slipped capital femoral epiphysis (SCFE).https://kidshealth.org/ws/RadyChildrens/en/teens/scfe.html/ad764559-ea97-49a0-95a4-4785a2052c28
Sports and Exercise SafetyPlaying hard doesn't have to mean getting hurt. The best way to ensure a long and injury-free athletic career is to play it safe from the start. Find out how.https://kidshealth.org/ws/RadyChildrens/en/teens/sport-safety.html/cbffad82-3814-4cbc-8758-dd3aac78c363
What Happens in ACL Surgery?If you tore your ACL, you might need this surgery to fix it. Find out what's involved.https://kidshealth.org/ws/RadyChildrens/en/teens/acl-surgery.html/4d565aa6-8153-47a5-a1ae-ab6f6099ddc5
kh:age-teenThirteenToNineteenkh:age-youngAdultEighteenPluskh:clinicalDesignation-orthopedicsNonSportsMedkh:clinicalDesignation-orthopedicsSportsMedkh:genre-articlekh:primaryClinicalDesignation-orthopedicsSportsMedSportshttps://kidshealth.org/ws/RadyChildrens/en/teens/nutrition-fitness-center/sports/06ada184-a5c7-4aea-9e27-e72aa47566f6Sports Injuries for Teenshttps://kidshealth.org/ws/RadyChildrens/en/teens/sports-center/injuries/18720942-0829-4420-9a67-f8b644bb00b4Bones, Muscles & Joints (for Teens)https://kidshealth.org/ws/RadyChildrens/en/teens/diseases-conditions/bones/7860c047-e722-4a4c-b1f8-2fd11271b697https://kidshealth.org/EN/images/illustrations/ACLinjury_a_enIL.png