Knee Injuries | Knee Disorders

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Here:</span> <div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem"> <a href="https://medlineplus.gov/" itemprop="item"><span itemprop="name">Home</span></a> → <meta itemprop="position" content="1"/> </div> <div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem"> <a href="https://medlineplus.gov/healthtopics.html" itemprop="item"><span itemprop="name">Health Topics</span></a> → <meta itemprop="position" content="2"/> </div> <div> <span>Knee Injuries and Disorders</span> </div> </div> </div> <span class="page-url print-only">URL of this page: https://medlineplus.gov/kneeinjuriesanddisorders.html</span> <div id="topic"> <article> <div class="page-info"> <div class="page-title syndicate"> <a id="start" name="start"></a> <h1 itemprop="name"> Knee Injuries and Disorders </h1> </div> <div class="page-actions"></div> </div> <div class="main"> <section id="toc-section"> <div id="table-of-contents"> <span class="toc-label">On this page</span> <div class="toccolumn"> <h3>Basics</h3> <ul class="bulletlist"> <li> <a title="Go to: Summary" href="#summary">Summary</a> </li> <li> <a title="Go to: Start Here" href="#cat_51">Start Here</a> </li> <li> <a title="Go to: Diagnosis and Tests" href="#cat_92">Diagnosis and Tests</a> </li> <li> <a title="Go to: Treatments and Therapies" href="#cat_78">Treatments and Therapies</a> </li> </ul> </div> <div class="toccolumn"> <h3>Learn More</h3> <ul class="bulletlist"> <li> <a title="Go to: Living With" href="#cat_77">Living With</a> </li> <li> <a title="Go to: Specifics" href="#cat_42">Specifics</a> </li> </ul> </div> <p class="evencols clearsection hrdividor"></p> <div class="toccolumn"> <h3>See, Play and Learn</h3> <ul class="bulletlist"> <li> <a title="Go to: Images" href="#cat_80">Images</a> </li> <li> <a title="Go to: Test Your Knowledge" href="#cat_65">Test Your Knowledge</a> </li> </ul> </div> <p class="threecols clearsection hrdividor"></p> <div class="toccolumn"> <h3>Research</h3> <ul class="bulletlist"> <li> <a title="Go to: Clinical Trials" href="#cat_27">Clinical Trials</a> </li> <li> <a title="Go to: Journal Articles" href="#cat_59">Journal Articles</a> </li> </ul> </div> <p class="evencols clearsection hrdividor"></p> <div class="toccolumn"> <h3>Resources</h3> <ul class="bulletlist"> <li> <a title="Go to: Find an Expert" href="#cat_83">Find an Expert</a> </li> </ul> </div> <div class="toccolumn"> <h3>For You</h3> <ul class="bulletlist"> <li> <a title="Go to: Children" href="#cat_8">Children</a> </li> <li> <a title="Go to: Teenagers" href="#cat_24">Teenagers</a> </li> <li> <a title="Go to: Patient Handouts" href="#cat_69">Patient Handouts</a> </li> </ul> </div> </div> </section> <a name="summary"></a> <section id="topsum_section"> <div class="summary-title syndicate"> <h2>Summary</h2> </div> <div id="topic-summary" class="syndicate"><p>Your knee joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the knee joint move. When any of these structures is hurt or diseased, you have knee problems. Knee problems can cause pain and difficulty walking.</p> <p>Knee problems are very common, and they occur in people of all ages. Knee problems can interfere with many things, from participation in sports to simply getting up from a chair and walking. This can have a big impact on your life.</p> <p>The most common disease affecting the knee is <a href="https://medlineplus.gov/osteoarthritis.html">osteoarthritis</a>. The cartilage in the knee gradually wears away, causing pain and swelling.</p> <p>Injuries to ligaments and tendons also cause knee problems. A common injury is to the anterior cruciate ligament (ACL). You usually injure your ACL by a sudden twisting motion. ACL and other knee injuries are common <a href="https://medlineplus.gov/sportsinjuries.html">sports injuries</a>.</p> <p>Treatment of knee problems depends on the cause. In some cases your doctor may recommend <a href="https://medlineplus.gov/kneereplacement.html">knee replacement</a>.</p> <p class="attribution">NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases</p></div> </section> <a name="cat_51"></a> <section id="cat_51_section"> <div class="section"> <div class="section-header expanded"> <div class="section-title syndicate"> <h2>Start Here </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section51" class="section-body expanded syndicate" aria-expanded="true"> <ul class="bulletlist"> <li> <a href="https://familydoctor.org/symptom/knee-problems/?adfree=true" target="TheNewWin" data-sid="21849" >Knee Problems</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://es.familydoctor.org/sintoma/problemas-de-rodilla/?adfree=true" data-sid="103605">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_92"></a> <section id="cat_92_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Diagnosis and Tests </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section92" class="section-body"> <ul class="bulletlist"> <li> <a href="https://www.radiologyinfo.org/en/info/arthrog" target="TheNewWin" data-sid="36668" >Direct Arthrography</a> <span class="desc-text"> <img width="20" height="16" alt="Video" title="Video" src="https://medlineplus.gov/images/videocamera.gif" class="imgdesc"> <span class="orgs"> (American College of Radiology; Radiological Society of North America)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://www.radiologyinfo.org/es/info/arthrog" data-sid="58863">Spanish</a> </span> </li> <li> <a href="https://www.radiologyinfo.org/en/info/kneemr" target="TheNewWin" data-sid="99307" >Knee MRI</a> <span class="desc-text"> <span class="orgs"> (American College of Radiology; Radiological Society of North America)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://www.radiologyinfo.org/es/info/kneemr" data-sid="103757">Spanish</a> </span> </li> <li> <a href="https://familydoctor.org/symptom/knee-problems/?adfree=true" target="TheNewWin" data-sid="21849" >Knee Problems</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://es.familydoctor.org/sintoma/problemas-de-rodilla/?adfree=true" data-sid="103605">Spanish</a> </span> </li> <li> <a href="https://kidshealth.org/en/parents/xray-knee.html" target="TheNewWin" data-sid="155546" >X-Ray Exam: Knee</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> </li> </ul> </div> </div> </section> <a name="cat_78"></a> <section id="cat_78_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Treatments and Therapies </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section78" class="section-body"> <ul class="bulletlist"> <li> <a href="https://www.mayoclinic.org/diseases-conditions/acl-injury/diagnosis-treatment/drc-20350744?p=1" target="TheNewWin" data-sid="157968" >ACL Injury: Diagnosis and Treatment</a> <span class="desc-text"> <span class="orgs"> (Mayo Foundation for Medical Education and Research)</span> </span> </li> <li> <a href="https://orthoinfo.aaos.org/en/treatment/knee-arthroscopy/" target="TheNewWin" data-sid="63648" >Knee Arthroscopy</a> <span class="desc-text"> <span class="orgs"> (American Academy of Orthopaedic Surgeons)</span> </span> </li> <li> <a href="https://medlineplus.gov/kneereplacement.html" data-sid="48526" data-org="NLM">Knee Replacement: MedlinePlus Health Topic</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Library of Medicine)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/kneereplacement.html" data-sid="103642">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_77"></a> <section id="cat_77_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Living With </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section77" class="section-body"> <ul class="bulletlist"> <li> <a href="https://familydoctor.org/knee-bracing-what-works/?adfree=true" target="TheNewWin" data-sid="28858" >Knee Bracing: What Works?</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://es.familydoctor.org/rodilleras-que-funciona/?adfree=true" data-sid="58131">Spanish</a> </span> </li> <li> <a href="https://orthoinfo.aaos.org/en/recovery/knee-conditioning-program/knee-pdf/" target="TheNewWin" data-sid="104571" >Knee Rehabilitation Exercises</a> <span class="desc-text"> <span class="orgs"> (American Academy of Orthopaedic Surgeons)</span> </span> </li> <li> <a href="https://medlineplus.gov/mobilityaids.html" data-sid="52170" data-org="NLM">Mobility Aids: MedlinePlus Health Topic</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Library of Medicine)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/mobilityaids.html" data-sid="104414">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_42"></a> <section id="cat_42_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Specifics </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section42" class="section-body"> <ul class="bulletlist"> <li> <a href="https://familydoctor.org/condition/acl-injuries/?adfree=true" target="TheNewWin" data-sid="126231" >ACL Injury</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> </li> <li> <a href="https://www.mayoclinic.org/diseases-conditions/baker-cyst/symptoms-causes/syc-20369950?p=1" target="TheNewWin" data-sid="46002" >Baker Cyst</a> <span class="desc-text"> <span class="orgs"> (Mayo Foundation for Medical Education and Research)</span> </span> </li> <li> <a href="https://familydoctor.org/condition/osteochondritis-dissecans/?adfree=true" target="TheNewWin" data-sid="26685" >Osteochondritis Dissecans</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://es.familydoctor.org/condicion/osteocondritis-disecante-es/?adfree=true" data-sid="57859">Spanish</a> </span> </li> <li> <a href="https://www.mayoclinic.org/diseases-conditions/patellar-tendinitis/symptoms-causes/syc-20376113?p=1" target="TheNewWin" data-sid="56958" >Patellar Tendinitis</a> <span class="desc-text"> <span class="orgs"> (Mayo Foundation for Medical Education and Research)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://www.mayoclinic.org/es/diseases-conditions/patellar-tendinitis/symptoms-causes/syc-20376113?p=1" data-sid="130407">Spanish</a> </span> </li> <li> <a href="https://familydoctor.org/condition/patellofemoral-pain-syndrome/?adfree=true" target="TheNewWin" data-sid="30404" >Patellofemoral Pain Syndrome</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://es.familydoctor.org/condicion/sindrome-de-dolor-patelofemoral-es/?adfree=true" data-sid="56466">Spanish</a> </span> </li> <li> <a href="https://familydoctor.org/condition/pigmented-villonodular-synovitis/?adfree=true" target="TheNewWin" data-sid="32033" >Pigmented Villonodular Synovitis</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://es.familydoctor.org/condicion/sinovitis-vellonodular-pigmentada-pvns-es/?adfree=true" data-sid="58506">Spanish</a> </span> </li> <li> <a href="https://www.mayoclinic.org/diseases-conditions/swollen-knee/symptoms-causes/syc-20378129?p=1" target="TheNewWin" data-sid="9891" >Swollen Knee (Water on the Knee)</a> <span class="desc-text"> <span class="orgs"> (Mayo Foundation for Medical Education and Research)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://www.mayoclinic.org/es/diseases-conditions/swollen-knee/symptoms-causes/syc-20378129?p=1" data-sid="130409">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_80"></a> <section id="cat_80_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Images </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section80" class="section-body"> <ul class="bulletlist"> <li> <a href="https://medlineplus.gov/ency/presentations/100230_1.htm" data-sid="97824" >Anterior cruciate ligament repair - series</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/esp_presentations/100230_1.htm" data-sid="98064">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/presentations/100117_1.htm" data-sid="97822" >Knee arthroscopy - series</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/esp_presentations/100117_1.htm" data-sid="98110">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_65"></a> <section id="cat_65_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Test Your Knowledge </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section65" class="section-body"> <ul class="bulletlist"> <li> <a href="https://medlineplus.gov/ency/quiz/003187_56.htm" data-sid="159306" >Knee Pain Myths & Facts Quiz</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/quiz/003187_92.htm" data-sid="159307">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_27"></a> <section id="cat_27_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Clinical Trials </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section27" class="section-body"> <ul class="bulletlist"> <li> <a href="https://clinicaltrials.gov/search?cond=%22Anterior+Cruciate+Ligament%22&aggFilters=status:not%20rec" target="TheNewWin" data-sid="120805" data-org="NIH">ClinicalTrials.gov: Anterior Cruciate Ligament (ACL) Injuries</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Institutes of Health)</span> </span> </li> <li> <a href="https://clinicaltrials.gov/search?cond=%22Anterior+Cruciate+Ligament+Reconstruction%22&aggFilters=status:not%20rec" target="TheNewWin" data-sid="100898" data-org="NIH">ClinicalTrials.gov: Anterior Cruciate Ligament Reconstruction</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Institutes of Health)</span> </span> </li> <li> <a href="https://clinicaltrials.gov/search?cond=%22Cartilage,+Articular%22&aggFilters=status:not%20rec" target="TheNewWin" data-sid="120806" data-org="NIH">ClinicalTrials.gov: Articular Cartilage Disorders</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Institutes of Health)</span> </span> </li> <li> <a href="https://clinicaltrials.gov/search?term=knee+injuries&aggFilters=status:not%20rec" target="TheNewWin" data-sid="44876" data-org="NIH">ClinicalTrials.gov: Knee Injuries</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Institutes of Health)</span> </span> </li> <li> <a href="https://clinicaltrials.gov/search?cond=%22Menisci,+Tibial%22&aggFilters=status:not%20rec" target="TheNewWin" data-sid="78078" data-org="NIH">ClinicalTrials.gov: Menisci, Tibial</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Institutes of Health)</span> </span> </li> <li> <a href="https://clinicaltrials.gov/search?cond=%22Patella%22&aggFilters=status:not%20rec" target="TheNewWin" data-sid="120807" data-org="NIH">ClinicalTrials.gov: Patella Disorders</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> <span class="orgs"> (National Institutes of Health)</span> </span> </li> </ul> </div> </div> </section> <a name="cat_59"></a> <section id="cat_59_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Journal Articles <span class="subheading">References and abstracts from MEDLINE/PubMed (National Library of Medicine)</span> </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section59" class="section-body"> <ul class="bulletlist"> <li> <a href="https://www.ncbi.nlm.nih.gov/pubmed/39418227" target="TheNewWin" data-sid="4227" >Article: Use of tourniquet in anterior cruciate ligament reconstruction: Is it truly...</a> <span class="desc-text"> </span> </li> <li> <a href="https://www.ncbi.nlm.nih.gov/pubmed/39354997" target="TheNewWin" data-sid="4227" >Article: The applied study to improve the treatment of knee sports injuries...</a> <span class="desc-text"> </span> </li> <li> <a href="https://www.ncbi.nlm.nih.gov/pubmed/39079247" target="TheNewWin" data-sid="4227" >Article: The advantages of using tranexamic acid in anterior cruciate ligament reconstruction:...</a> <span class="desc-text"> </span> </li> <li> <a href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Knee+Injuries%22%5Bmajr%3Anoexp%5D+OR+%22Anterior+Cruciate+Ligament+Reconstruction%22%5Bmajr%3Anoexp%5D+AND+humans%5Bmh%5D+AND+english%5Bla%5D+AND+%22last+1+Year%22+%5Bedat%5D+AND+%28patient+education+handout%5Bpt%5D+OR+guideline%5Bpt%5D+OR+clinical+trial%5Bpt%5D%29++NOT+%28letter%5Bpt%5D+OR+case+reports%5Bpt%5D+OR+editorial%5Bpt%5D+OR+comment%5Bpt%5D%29+AND+free+full+text%5Bsb%5D+" target="TheNewWin" data-sid="4227" >Knee Injuries and Disorders -- see more articles</a> <span class="desc-text"> </span> </li> </ul> </div> </div> </section> <a name="cat_83"></a> <section id="cat_83_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Find an Expert </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section83" class="section-body"> <ul class="bulletlist"> <li> <a href="https://findadoctor.aahks.net" target="TheNewWin" data-sid="25700" >Find a Doctor in American Association of Hip and Knee Surgeons</a> <span class="desc-text"> <span class="orgs"> (American Association of Hip and Knee Surgeons)</span> </span> </li> <li> <a href="https://www.niams.nih.gov/" target="TheNewWin" data-sid="846" data-org="NIAMS">National Institute of Arthritis and Musculoskeletal and Skin Diseases</a> <span class="desc-text"> <img width="25" height="16" alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc"> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://www.niams.nih.gov/es/portal-en-espanol" data-sid="44038">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_8"></a> <section id="cat_8_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Children </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section8" class="section-body"> <ul class="bulletlist"> <li> <a href="https://kidshealth.org/en/parents/osgood.html" target="TheNewWin" data-sid="117808" >Osgood-Schlatter Disease (For Parents)</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> </li> <li> <a href="https://kidshealth.org/en/parents/osteochondritis-dissecans.html" target="TheNewWin" data-sid="134859" >Osteochondritis Dissecans (For Parents)</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://kidshealth.org/es/parents/osteochondritis-dissecans.html" data-sid="158665">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_24"></a> <section id="cat_24_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Teenagers </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section24" class="section-body"> <ul class="bulletlist"> <li> <a href="https://kidshealth.org/en/teens/acl-injuries.html" target="TheNewWin" data-sid="113063" >Anterior Cruciate Ligament (ACL) Injuries</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://kidshealth.org/es/teens/acl-injuries.html" data-sid="134490">Spanish</a> </span> </li> <li> <a href="https://kidshealth.org/en/teens/jumpers-knee.html" target="TheNewWin" data-sid="109174" >Jumper's Knee</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://kidshealth.org/es/teens/jumpers-knee.html" data-sid="115939">Spanish</a> </span> </li> <li> <a href="https://kidshealth.org/en/teens/knee-injuries.html" target="TheNewWin" data-sid="50578" >Knee Injuries</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://kidshealth.org/es/teens/knee-injuries.html" data-sid="156480">Spanish</a> </span> </li> <li> <a href="https://kidshealth.org/en/teens/mcl-injuries.html" target="TheNewWin" data-sid="113064" >Medial Collateral Ligament (MCL) Injuries</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://kidshealth.org/es/teens/mcl-injuries.html" data-sid="158989">Spanish</a> </span> </li> <li> <a href="https://kidshealth.org/en/teens/meniscus-tear.html" target="TheNewWin" data-sid="108062" >Meniscus Tears</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> </li> <li> <a href="https://familydoctor.org/condition/osgood-schlatter-disease/?adfree=true" target="TheNewWin" data-sid="2975" >Osgood-Schlatter Disease</a> <span class="desc-text"> <span class="orgs"> (American Academy of Family Physicians)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://es.familydoctor.org/condicion/enfermedad-de-osgood-schlatter-es/?adfree=true" data-sid="28767">Spanish</a> </span> </li> <li> <a href="https://kidshealth.org/en/teens/osgood.html" target="TheNewWin" data-sid="50579" >Osgood-Schlatter Disease</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://kidshealth.org/es/teens/osgood.html" data-sid="117846">Spanish</a> </span> </li> <li> <a href="https://kidshealth.org/en/teens/runners-knee.html" target="TheNewWin" data-sid="93966" >Runner's Knee</a> <span class="desc-text"> <span class="orgs"> (Nemours Foundation)</span> </span> <span class="also-lang"> Also in <a target="TheNewWin2" href="https://kidshealth.org/es/teens/runners-knee.html" data-sid="98449">Spanish</a> </span> </li> </ul> </div> </div> </section> <a name="cat_69"></a> <section id="cat_69_section"> <div class="section"> <div class="section-header"> <div class="section-title"> <h2>Patient Handouts </h2> </div> <div class="section-button"> <button title="Expand/Collapse section" role="button" aria-controls="section" aria-pressed="true" type="submit"> <span class="icon icon-section-action"></span> </button> </div> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> </div> <div id="section69" class="section-body"> <ul class="bulletlist"> <li> <a href="https://medlineplus.gov/ency/article/007208.htm" data-sid="83698" >ACL reconstruction</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/007208.htm" data-sid="87512">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/article/001074.htm" data-sid="82059" >Anterior crucate ligament (ACL) injury</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/001074.htm" data-sid="84460">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/patientinstructions/000681.htm" data-sid="114534" >Anterior cruciate ligament (ACL) injury -- aftercare</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/patientinstructions/000681.htm" data-sid="114685">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/article/000452.htm" data-sid="81172" >Anterior knee pain</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/000452.htm" data-sid="85973">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/article/001222.htm" data-sid="81766" >Baker cyst</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/001222.htm" data-sid="85334">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/patientinstructions/000582.htm" data-sid="105776" >Broken kneecap - aftercare</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/patientinstructions/000582.htm" data-sid="105799">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/patientinstructions/000671.htm" data-sid="114528" >Collateral ligament (CL) injury -- aftercare</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/patientinstructions/000671.htm" data-sid="114587">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/patientinstructions/000167.htm" data-sid="84143" >Getting your home ready - knee or hip surgery</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/patientinstructions/000167.htm" data-sid="86964">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/article/002972.htm" data-sid="82986" >Knee arthroscopy</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/002972.htm" data-sid="85595">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/article/007361.htm" data-sid="83794" >Knee MRI scan</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/007361.htm" data-sid="86368">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/article/003187.htm" data-sid="82850" >Knee pain</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/003187.htm" data-sid="86809">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/patientinstructions/000684.htm" data-sid="114537" >Meniscus tears - aftercare</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/patientinstructions/000684.htm" data-sid="114693">Spanish</a> </span> </li> <li> <a href="https://medlineplus.gov/ency/article/001258.htm" data-sid="82458" >Osgood-Schlatter disease</a> <span class="desc-text"> <span class="orgs"> (Medical Encyclopedia)</span> </span> <span class="also-lang"> Also in <a href="https://medlineplus.gov/spanish/ency/article/001258.htm" data-sid="85473">Spanish</a> </span> </li> </ul> </div> </div> </section> </div> <div class="side"> <aside> <section id="ht-img-section"> <div class="side-section"> <div class="section-header hide-offscreen"> <h2>Topic Image</h2> </div> <div class="section-body no-header"> <img src="https://medlineplus.gov/images/KneeInjuriesandDisorders.jpg" title="Knee Injuries and Disorders" alt="Knee Injuries and Disorders" /> </div> </div> </section> <section id="encyclopedia-box"> <div class="side-section"> <div class="section-header red"> <h2>MEDICAL ENCYCLOPEDIA</h2> </div> <div id="more_encyclopedia" class="section-body"> <ul> <li><a data-sid="83698" href="https://medlineplus.gov/ency/article/007208.htm">ACL reconstruction</a></li> <li><a data-sid="83896" href="https://medlineplus.gov/ency/patientinstructions/000189.htm">ACL reconstruction - discharge</a></li> <li><a data-sid="82059" href="https://medlineplus.gov/ency/article/001074.htm">Anterior crucate ligament (ACL) injury</a></li> <li><a data-sid="114534" href="https://medlineplus.gov/ency/patientinstructions/000681.htm">Anterior cruciate ligament (ACL) injury -- aftercare</a></li> <li><a data-sid="97824" href="https://medlineplus.gov/ency/presentations/100230_1.htm">Anterior cruciate ligament repair - series</a></li> <li><a data-sid="81172" href="https://medlineplus.gov/ency/article/000452.htm">Anterior knee pain</a></li> <li><a data-sid="81766" href="https://medlineplus.gov/ency/article/001222.htm">Baker cyst</a></li> <li><a data-sid="105776" href="https://medlineplus.gov/ency/patientinstructions/000582.htm">Broken kneecap - aftercare</a></li> <li><a data-sid="114528" href="https://medlineplus.gov/ency/patientinstructions/000671.htm">Collateral ligament (CL) injury -- aftercare</a></li> <li><a data-sid="84143" href="https://medlineplus.gov/ency/patientinstructions/000167.htm">Getting your home ready - knee or hip surgery</a></li> </ul><ul class="more-links"> <li><a data-sid="114535" href="https://medlineplus.gov/ency/patientinstructions/000683.htm">Iliotibial band syndrome -- aftercare</a></li> <li><a data-sid="82986" href="https://medlineplus.gov/ency/article/002972.htm">Knee arthroscopy</a></li> <li><a data-sid="83906" href="https://medlineplus.gov/ency/patientinstructions/000199.htm">Knee arthroscopy - discharge</a></li> <li><a data-sid="97822" href="https://medlineplus.gov/ency/presentations/100117_1.htm">Knee arthroscopy - series</a></li> <li><a data-sid="83779" href="https://medlineplus.gov/ency/article/007345.htm">Knee CT scan</a></li> <li><a data-sid="83414" href="https://medlineplus.gov/ency/article/007255.htm">Knee microfracture surgery</a></li> <li><a data-sid="83794" href="https://medlineplus.gov/ency/article/007361.htm">Knee MRI scan</a></li> <li><a data-sid="82850" href="https://medlineplus.gov/ency/article/003187.htm">Knee pain</a></li> <li><a data-sid="105779" href="https://medlineplus.gov/ency/patientinstructions/000585.htm">Kneecap dislocation - aftercare</a></li> <li><a data-sid="83699" href="https://medlineplus.gov/ency/article/007209.htm">Meniscal allograft transplantation</a></li> <li><a data-sid="114537" href="https://medlineplus.gov/ency/patientinstructions/000684.htm">Meniscus tears - aftercare</a></li> <li><a data-sid="82458" href="https://medlineplus.gov/ency/article/001258.htm">Osgood-Schlatter disease</a></li> <li><a data-sid="99716" href="https://medlineplus.gov/ency/article/007499.htm">Osteotomy of the knee</a></li> <li><a data-sid="114533" href="https://medlineplus.gov/ency/patientinstructions/000680.htm">Posterior cruciate ligament (PCL) injury -- aftercare</a></li> <li><a data-sid="97823" href="https://medlineplus.gov/ency/presentations/100223_1.htm">Tibial osteotomy - series</a></li> </ul> <div aria-live="polite" class="live-area hide-offscreen"></div> <button class="more-btn" role="button" aria-controls="more_encyclopedia" type="submit"> <span class="more">Show More</span><span class="more icon icon-more"></span> <span class="less">Show Less</span><span class="less icon icon-more"></span> </button> </div> </div> </section> <section id="related-topics"> <div class="side-section"> <div class="section-header"> <h2>Related Health Topics</h2> </div> <div class="section-body"> <ul id="related"> <li><a href="https://medlineplus.gov/kneereplacement.html">Knee Replacement</a></li> <li><a href="https://medlineplus.gov/leginjuriesanddisorders.html">Leg Injuries and Disorders</a></li> </ul> </div> </div> </section> <section id="primary-institute-section"> <div class="side-section"> <div class="section-header"> <h2>National Institutes of Health</h2> </div> <div class="section-body"> The primary NIH organization for research on <span class="italic">Knee Injuries and Disorders</span> is the <a href="http://www.niams.nih.gov/" target="TheNewWin">National Institute of Arthritis and Musculoskeletal and Skin Diseases</a> </div> </div> </section> <section> <div class="side-section"> <div class="section-header hide-offscreen"> <h2>Disclaimers</h2> </div> <div class="section-body no-header"> MedlinePlus links to health information from the National Institutes of Health and other federal government agencies. MedlinePlus also links to health information from non-government Web sites. See our <a href="https://medlineplus.gov/disclaimers.html">disclaimer</a> about external links and our <a href="https://medlineplus.gov/criteria.html">quality guidelines</a>. </div> </div> </section> </aside> </div> <div class="page-action-bottom"> <div class="page-actions"></div> </div> </article> </div> <p>The information on this site should not be used as a substitute for professional medical care or advice. 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Knee problems can be affected by rheumatic diseases and cartilage damage.", "mainContentOfPage": "Your knee joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the knee joint move. When any of these structures is hurt or diseased, you have knee problems. Knee problems can cause pain and difficulty walking.\u000A\u000AKnee problems are very common, and they occur in people of all ages. Knee problems can interfere with many things, from participation in sports to simply getting up from a chair and walking. This can have a big impact on your life.\u000A\u000AThe most common disease affecting the knee is osteoarthritis. The cartilage in the knee gradually wears away, causing pain and swelling.\u000A\u000AInjuries to ligaments and tendons also cause knee problems. A common injury is to the anterior cruciate ligament (ACL). You usually injure your ACL by a sudden twisting motion. ACL and other knee injuries are common sports injuries.\u000A\u000ATreatment of knee problems depends on the cause. In some cases your doctor may recommend knee replacement.\u000A\u000ANIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases", "primaryImageOfPage": { "@type": "ImageObject", "contentUrl": "https://medlineplus.gov/images/KneeInjuriesandDisorders.jpg" }, "url": "https://medlineplus.gov/kneeinjuriesanddisorders.html" } ] </script> </body> </html>

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