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Combined Knee Ligament Injuries
AAOS — In the past, injuring more than one knee ligament would put an end to future sports activities. Today, many athletes are able to return to high level sports following multiple ligament injuries. It is possible to injure two or more ligaments at ...More…
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Collateral Ligament Injuries
AAOS — Athletes who participate in direct contact sports like football or soccer are more likely to injure their collateral ligaments. These are found on the sides of your knee. The medial or "inside" collateral ligament (MCL) connects the femur to the ...More…
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Anterior Cruciate Ligament Injuries
AAOS — One of the most common knee injuries is an anterior cruciate ligament sprain or tear. Athletes who participate in high demand sports like soccer, football, and basketball are more likely to injure their anterior cruciate ligaments. If you have ...More…
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Additional Resources on the Knee
AAOS — Want more information? Try one of these Web sites. You'll find information on musculoskeletal conditions relating to the knee, links to other Web sites, and information on other health conditions. American Orthopaedic Society for Sports ...More…
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A Patient's Experience with Torn ACL
AAOS — Stan Kolby leads a very active life--skiing, mountain biking, hunting, running and golf. He even owns a company that caters to people, like himself, who enjoy river sports such as canoeing, kayaking and rafting. A few years ago, a skiing injury ...More…
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Meniscal Transplant Surgery
AAOS — The meniscus is a C-shaped cushion of cartilage in the knee joint. When people talk about torn cartilage in the knee, they are usually referring to torn meniscus. If a meniscus is so badly damaged it cannot be repaired, it may need to be removed ...More…
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ACL Injury: Does It Require Surgery?
AAOS — The anterior cruciate ligament (ACL) is one of the most commonly injured ligaments of the knee. The incidence of ACL injuries is currently estimated at approximately 200,000 annually, with 100,000 ACL reconstructions performed each year.1, ...More…
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A Patient's Experience with Vitamin D ...
AAOS — At the age of 55, Carol Jane Carlson was more active than many people half her age. An outdoor enthusiast, she enjoyed hiking, downhill skiing, gardening and running. She had completed seven marathons, with plans for more. As a nurse, Carol ...More…
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Care of the Aging or Post-Traumatic Knee
AAOS — Playing team sports, jogging, or doing other high impact activities that repeatedly pound, twist, and turn the knees can stress aging joints. Highly active, middle-aged patients may develop painful knees as a result of osteoarthritis (OA). This ...More…
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Unstable Kneecap
AAOS — When things are "in the groove," they're going smoothly. That certainly is the case with your knee. As long as your kneecap (patella) stays in its groove in the knee, you can walk, run, sit, stand, and move easily. When the kneecap slips out ...More…
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Posterior Cruciate Ligament Injuries
AAOS — The posterior cruciate ligament is located in the back of the knee. It is one of several ligaments that connect the femur (thighbone) to the tibia (shinbone). The posterior cruciate ligament keeps the tibia from moving backwards too far. An ...More…
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Meniscal Tears
AAOS — Your knee is the largest joint in your body and one of the most complex. Because you use it so much, it is vulnerable to injury. Because it is made up of so many parts, many different things can go wrong. Meniscal tears are among the most common ...More…