2. Overview “Anterior Cruciate Ligament” 1 of 4 major ligaments in the knee Primary function is stabilization Prevents extreme motion within the knee http://www.orthoinfo.org/topic.cfm?topic=A00549
3. Key Components/ Factors of Topic 200,000 annual injuries ½ result in ACL reconstruction surgery 50% occur in correlation with meniscus, articular cartilage, or ligament damage Able to perform DTL without a properly functioning ACL
4. Causes Sports – Related Injury Motor Vehicle Accidents Falls Work – Related Injury ACL TEARS OCCUR MOST FREQUENTLY WHEN PIVOTION OR LANDING STRAIGHT LEGGED FROM A JUMP
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8. Signs/ Symptoms Knee usually gives-out from underneath “Pop” in the knee Pain and Swelling Discomfort while walking Reduced range of motion Physician Examination Instability of the knee Lachman Test MRI Pain and swelling can reduce within a couple weeks http://www.google.com/imgres?imgurl=http://factotem.org/library/images/Knee-MRI-and-Xray-images/f5-MRI-fully-torn-ACL-side-view.jpg&imgrefurl=http://factotem.org/library/database/Knee-Articles/Knee-MRI-and-Xray-images.shtml&usg=__dPwX0fIVW5MhIkMdO3EtWxCmbe0=&h=496&w=372&sz=27&hl=en&start=0&sig2=ffm3jrvL9B96qowUXtcQiA&zoom=1&tbnid=gfK5_AwRSMV92M:&tbnh=152&tbnw=114&ei=Ff79TLitJ4a8lQef0Z2fCA&prev=/images%3Fq%3Dmri%2Bof%2Ba%2Btorn%2Bacl%26hl%3Den%26sa%3DG%26biw%3D1362%26bih%3D533%26gbv%3D2%26tbs%3Disch:1&itbs=1&iact=hc&vpx=541&vpy=156&dur=203&hovh=259&hovw=194&tx=106&ty=129&oei=Ff79TLitJ4a8lQef0Z2fCA&page=1&ndsp=15&ved=1t:429,r:3,s:0
9. Lachman Test Knee flexed 30° Pull tibia to assess anterior range of motion Positive: Increased forward ROM http://www.youtube.com/watch?v=dH_jnTy1rNk&list=PL09D0DFA4E90D92B7&index=51&playnext=3
10. Treatment Not all ACL tears require surgery “Do you routinely perform activities that normally require a functional ACL?” “Is there knee instability?” If ACL is not completely torn Sedentary lifestyle or light manual work load Growth plates
11. Physical Therapy and Rehabilitation Physical Therapy and Rehabilitation Very important Restores motion Builds up strength Improves stability of joint Learn techniques to keep from reinjuring Individualized progression Hinged knee brace Many experience second injury
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14. Benefits of Exercise Strengthen muscles surrounding ACL to reduce risk of re-injury Maintain (or lose) weight Reduces stress on knees and lower extremities Keeps blood circulation to reduce risk of developing clots post - op
15. Risk with Exercise Progressing too quickly (or slowly) during rehabilitation Risk of re-injury Avoid twisting exercises Balancing exercises One leg weight bearing exercises Avoid weight bearing lunges Avoid elevation jumping exercises
16. How It Relates to Me Sports Medicine Physician Work with Olympic athletes
