LIGAMENTS OF THE KNEE
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- Опубліковано 6 лис 2018
- The knee is the largest joint in the human body. It is a compound joint. Not only is it where the femur, or thigh bone, meets the tibia, or shin bone - at the tibiofemoral joint, but it is also where the femur meets the patella, or kneecap - at the patellofemoral joint.
There are several ligaments around the knee joint and these are crucial because they limit movements and stabilize the joint. Ligaments are durable bands of fibrous tissue that connect joints and strengthen them.
There are two main pairs of ligaments in the knee - the cruciate ligaments, which are inside your knee joint, and the collateral ligaments, which run on either side of the knee.
The cruciate ligaments can be seen through the intercondylar notch of the femur. There’s the anterior cruciate ligament, or ACL, and the posterior cruciate ligament, or PCL, which stabilize the knee. The ACL prevents the tibia from being pushed forward relative to the femur, while the PCL prevents it from being pushed backwards relative to the femur.
Now for the collateral ligaments - there’s a medial collateral ligament and a lateral collateral ligament. Medial means at the middle, while lateral means on the side. Hence, the medial collateral ligament is found on the inner side of the knee, running from the femur to the tibia. The lateral collateral ligament is found on the outer side of the knee, however, it runs from the femur to the fibula! Note that the medial collateral ligament is significantly wider than the lateral collateral ligament. Together, the medial and lateral collateral ligaments resist sideways movements of the bones relative to one another.
Looking back inside the intercondylar notch, we can see the transverse ligament - otherwise called the anterior meniscomeniscal ligament. This ligament connects the anterior lateral meniscus to the anterior medial meniscus. This ligament is important during knee extension, since it prevents the anterior horns of the menisci from coming forward, which would cause the condyles of the femur and tibia to put pressure on them.
A ligament discovered in 2013 is the anterolateral ligament, or ALL. It originates at the femur and inserts into the tibia. It is thought that it might control internal tibial rotation.
Here we have the ligament of Wrisberg, also called the posterior meniscofemoral ligament. This ligament attaches to the posterior lateral meniscus and crosses behind the PCL to attach to the medial condyle of the femur.
Now I’d like to bring your attention to a structure that some call a tendon, and some call a ligament. As a reminder, the difference between ligaments and tendons is that ligaments connect bones to bones, while tendons connect bones to muscles. Here we have the patellar tendon… which some people call the patellar ligament. The patellar tendon connects the patella (or kneecap) to the tibia. Since these are two bones, shouldn’t it be a ligament? Well, this structure is really connecting the quadriceps muscle to the tibia. The patellar tendon is part of a more extensive mechanism, which includes the tibia, the patellar tendon, the patella, the quadriceps tendon, and the quadriceps muscle. Together, these structures allow you to straighten your knee. As a side note, the patella is what is known as a floating sesamoid bone. A sesamoid is a bone embedded in a tendon.
To close off, I just want to bring your attention to a couple of other structures visible in this model. The medial and lateral menisci are composed of connective tissue with extensive collagen fibers. They protect the ends of the bones from rubbing against each other. Similarly to the collateral ligaments, the medial one is on the inner side of your knee and the lateral one is on the outer side of your knee.
We can also see the articular cartilage on this model. This smooth, white tissue covers the ends of bones where they converge at joints, minimizing friction and allowing bones to glide over each other. As you get older, the articular cartilage and the menisci wear down, exposing underlying bone. This changes the load distribution and biomechanics of your knee and causes pain and inflammation as your bones grind together.
3D model modified from www.turbosquid.com/FullPrevie...
I have ACL ligament injury in Oct 2022 and it just ruined by career in Football.After surgery I cannot get back my playing as before I always cry when I realized myself in my Aps Sialkot School and CCI City School performance in Local matches now I realized that I was really something in my game before it was too late oh God.Now I am 20 and just in depression I left study and my parents find me against them and I am on my own universe that I cannot return back.Just pray for me guys I have been died when football leave me and I left study now remaining is my body that has nothing to feel just to be like idle.May your prayers can change my future
Finally a detailed explanation with clear visual approach! Thank you!
This is everything I needed for knee! Thanks a lot!
I rewatch several times to allow this to “soak in”. Thank you for work. 👍🏽
I was confused since last 2 days about this topic ... This 4 min video saved me thanks
Excellent thorough video. Thank you. It's crazy that we're still discovering new ligaments and basic anatomy in the 2010's.
True. That too in a joint that is extensively researched and commonly exposed to surgeons due to injuries.
This is an absolutly and awesome content!! Thanks from Brazil!
Uh God, it's perfect. Millions of thanks from Milano
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It’s called evolution buddy
Thank you..simply beautiful
Fantastic, precise, succint !!!!! I am running out of adjectives !!!
Brilliant vid!
Excellent video
so clear , so helpful.
thank you so much.
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Thanks a lot.
Thank you
Thank you! That video helped
very simple and useful thank u so much
I just educated myself. Waiting for more.
Very nice one...
Good work ..
Thankyou so much for making this video..
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Great video
Thank you:)
Well done
Thanks
Very well explained 🙏🙏
These are really cool... .. .Paul
Thanks.so helpful
Great explination
This was super helpful! Thank you so much!
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Interesting.
Thank ✨✨ really very useful information 👍
Thank you
Very informative information given in this video's.
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Thank you so much....
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An excellent and informative video
Thank you very much for your contribution.
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Thanx for this support
Really helpful
Everything covered in short video very massive ❤️
Falling in love with anatomy
do you know what is resist the movement of lateral meniscus?
Very clear.
One detail: Right at the end the comment is that as you age the cartilage and menisci wear down. I thought exercise and use could prevent this effect - at least as far as is allowed by the progressive senescence of the articular cartilage chondrocytes...
Praise the lord for is magnificent creation 😊.
God bless you .. BEst
Osssm great job ....perfect
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Great
Tq so much
Can you tell me more about the transverse ligament of the knee that connect the medial and lateral meniscus? If this has a slight tear or is inflamed, what are the symptoms?
Popping sound ,and inflamation .
How in the world could we have just discovered the Anterolateral Ligament in the human body. What for a few hundred thousand years we never noticed it. Sounds unbelievable.
What does it mean if I can't bend my knee I have Sharp knife like pain in one cap I got a x-ray ultra sound car scan at the er they seem nothing....
I have complete torn of LCL and almost tear of PCL during accident. Do I need to surgery? To get back my knee before accident.
Mint
Any exercise for make strong ligament and Gap increase ?
Please cover 4th ventricle
Can i get a pdf for that content?
I hurt my knee playing football doctor said our torn my cartridge I think and it was fluid in my knee to come bend it and I was extremely in pain I was 22 took maybe 10 to 12 years from my knee to work right and I work hard and my knee is swallowing from me walking up and down the stairs painting houses. And after a while my knee hurts so bad. Seems like it takes a few days for my need to heal then it goes back to normal. I always start working is basically exercising. I work so much. Always thought working straighten up my leg. Would my knee ever go back to normal?
1:09 MCL is found on the inner side of the knee and LCL on outer of the knee BUT the video makes it look like the inverse of that.
Watching this a night before my anat. exam
Plzzz explain arcuate popliteal ligament, oblique popliteal ligament, posterior oblique ligament
Can you please talk about ligament
I m like wow.....
What about the MPFL? I have a partial tear of my MCL and a complete tear of MPFL which is why I watched this video. The video is great but missing what l was curious about 🤔
Just got my MRI report. What the heck is the ligament of Humphrey’s? I seem to not have definitive attachment of it. Thank you
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Perfect 😘
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Sir, I need hamstring muscle lower tendons contraction video, will u Plz post that video for plzz 🙏
Ty, I think, I hope, this enabled me to diagnose my issue. I was just thinking, 'well, it is definitely connecting femur to one of the lower bones...', and you said, ligaments connect bone to bone. I never knew that distinction with tendons, cool. but...
Can the MCL get torn from squatting position? Or on your knees, sitting back, so glutes are touching feet. More the second one, actually.. ... I'm confused and searching, because it's not a new activity, nothing happened out of ordinary, but it started in one knee, and then the other like 2 weeks later, after years, I thought that was odd??? ty
*I should note I stay very hydrated, definitely above average, but I sweat a lot while in that position, also.
Lol, the next video, the first thing she said was, the MCL runs the inside of the knee. I got turned around by the photo. It would be the LCL I'm talking about :)
My knee is not folding , after tumer operation, you have any treatment??
From this video I'd say my pain/discomfort is in my patellar tendon, connects knee cap to tibia, 3:00. After the pain started I noticed that my jog thru my neighborhood is all left turns! Hadn't thought about that, but then I realized on a left turn, running, my right knee gets the load as I shift weight into the turn and that seems to effect that ole Patellar tendon.
I switched up my route and take turns less sharply, but still fell it stressing. What vitamins do you take for strong tendons?
You gotta visit the doctor
Can you also teach arches of foot.
Sure thing! Added to the list of future topics! In the meantime, check out my video on bones of the foot: ua-cam.com/video/CO9bYgN15s8/v-deo.html
Be interesting if they made a robot using Ligaments, The must allow for more movements and degrees of freedom. Same for Tendons. You'd think with 3D printing it could be possible. Boston dynamics is still using circles instead of these innovative natural shapes
are you sent to me from heaven ?
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I know about inflammation pain pills how can I stop my left knee from hurting my right knee is fine it's the left knee
@@kellybozick-mdh-2155 nice
What a new ligament found in 2013 ... Docs before 2013 let me cut that extra junk
Lol ouch
Been in a wheelchair for about 2 years. If I could only extend my legs I could but my knees feel locked. Any advice?
Consult a physiotherapist
how on earth a knee ligament was discovered in 2013!!!! What!!
so I snapped my knee then got needle stuck in it but it should be fine I guess
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Hao
Hindi me sir ye video plz bheje
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Medial means to the middle? Wtf that would make the medial collateral ligamwnt kie in the middle of the knee joint, mesial means to wards the midline of the body axis
Be careful if you're thinking about training in Judo
I was told my ligament are weak
But i suffer from walking of kneeling down n to go up a stairs
Mfl is important legament
studying. for school
Perfect
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