Knee Structure

Improved Essays
The knee is a very complex structure and an essential joint that needs to be fully functioning for all athletes. It is one of the most complicated structures and the largest joint in our body (Marieb & Hoehn, 2013). The ligaments are what keep the knee in place and allow us to move and be mobile. This structure is also the most vulnerable because it is the part of our body that bears the most weight and pressure and needs to be flexible in order to maintain its purpose. We need our knees to support our body weight, have the ability to perform a squat and even something as simple as walking (Sanville, Nicholson, & Driscoll, 1994). The main parts of the knee are bones, ligaments, tendons, cartilages, and a joint capsule. All of these parts of the knee are made of collagen, which is fibrous tissue and continues to break down as the body goes through the aging process (Marieb & Hoehn, 2013). Since the knee bears so much weight and does not have much protection from stress and other trauma, this structure is at a higher risk for injuries (Sanville, Nicholson & Driscoll, 1994). Because the knee is so vulnerable, it is …show more content…
Ligaments are what attach bone to bone and provide strength and stability to the knee. Ligaments are tough and strong bands that are not generally flexible. When the ligament is stretched it usually tends to stay stretched until it is eventually snapped because it cannot shrink back down to its original length. The ligaments of the knee are the medial collateral ligament, lateral collateral ligament, anterior cruciate ligament, posterior cruciate ligament and the patellar ligament. The collateral ligaments are what keep the knee from moving medial or lateral too much (Sanville, Nicholson, & Driscoll, 1994). The cruciate ligaments criss-cross one another over the center of the knee. These are the ligaments that allow the tibia to move forward and backward under the

Related Documents

  • Improved Essays

    Acl Tears Research Paper

    • 2442 Words
    • 10 Pages

    For example, in football or soccer, a player plants his or her leg, slows down quickly, and cuts into a different direction. Depending on the direction of the cut, this sudden stop and twist of the knee can put too much stress on the ACL and cause it to tear (Slowik 2). While it is possible to tear an ACL in a non-contact sport, most ACL that are torn during sports occur while playing a contact sport. “One study showed that contact resulted in 93% of injuries in a ground of 226 patients while non-contact sport resulted in the remaining 7%” (Curran, Kum, Tanyu, Wyatt 1). The other risk factor for ACL tears is gender.…

    • 2442 Words
    • 10 Pages
    Improved Essays
  • Improved Essays

    Rectus Femoris

    • 755 Words
    • 4 Pages

    The knee is a very crucial structure in the human body. It plays an extremely essential role in human movement. The weight that is put through the knee at one time can be over extravagant and the way it takes the weight and controls the body is truly unbelievable and fascinating. It carries the weight forwards and backwards while walking, and upward and downwards while jumping.…

    • 755 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Derrick Cowl Case Study

    • 988 Words
    • 4 Pages

    Holding these bones together and providing movement and stability are the lateral collateral ligament (LCL), the medial collateral ligament (MCL), the anterior cruciate ligament (ACL), and posterior cruciate ligament (PCL) (“Knee Anatomy”). The top of the tibia is also covered by menisci acting mainly as shock absorbers (“Knee Anatomy”). As Cowl turned sharply to avoid being tackled, he felt a pop in his right knee. Following Cowl’s injury, an anterior drawer test, a Lachman test, and a pivot shift test were all performed. Through these tests, the trainer confirmed his suspicion of an ACL tear to the right knee.…

    • 988 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Cruciate Ligament Case

    • 514 Words
    • 3 Pages

    Case Study #3 With the given information about the blow to the tibial tuberosity causing displacement of the tibia posteriorly relative to the femur, the structure most likely injured is the posterior cruciate ligament because it is located on the posterior side of the patella and posterior displacement of the tibia on fixed femur is restricted by the posterior cruciate ligament. The posterior cruciate ligament is the strongest ligament in the knee joint and helps with stability. Once the posterior cruciate ligament is torn or stretched, it loses its stability. There are many ligaments that make up the knee joint, also known as a hinge type joint which perform tasks such as flexion and extension. The tibiofemoral and patellofemoral are joints of the knee which aid in flexion and extension of the knee.…

    • 514 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The Bad Knee As I see the ball flying up in the Monticello Trails gym, I knew I could catch it and get the other team out. Once I try to jump up to get it, my feet don’t even leave the ground before I feel a horrible pain in left knee. A terrible pain I hoped never to feel again. Dislocation is the displacement of one or more bones at a joint according to the Merriam Dictionary. Dislocation feels like someone ripping one of your extremities off.…

    • 693 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The structure most likely injured with the direct blow of the tibial tuberosity resulting in presentation of the lower limb (figure 1) would be the posterior cruciate ligament (PCL). The presented picture shows the tibia being pushed back posteriorly. The PCL, within the knee joint, prevents posterior translation of the tibia bone related to the femur bone (Moore et., al, 2014). If the PCL is torn, then the tibia can move backward too much leading to instability of the knee. The knee joint serves as a hinge joint that connects the femur to the tibia allowing for flexion, extension, and minimal internal/external rotation.…

    • 1034 Words
    • 5 Pages
    Improved Essays
  • Decent Essays

    ACL Injury Paper

    • 514 Words
    • 3 Pages

    This is a weak position for the knee and it cannot support the force and therefore, buckles and the ACL is injured. The theory this study is testing is if the hip musculature can support the knee. If a person has good muscle strength in the hip and gluteus medius, that may help with the valgus force and reduce the amount of injury. There is evidence to show that when adding hip strengthening exercises to a prevention program, it helps reduce the risk of ACL injury.…

    • 514 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Radial medial meniscus tears are short tears that extend from the inner margin of the meniscus and head towards the outer part of the meniscus Medial = towards the midline Tear = pull or rip with force Inner margin = inside Surgery If not repairable, then patients need to be followed up closely after injury to make sure that the pain and swelling goes down so that it does not turn worse Rest and staying off the injured knee Post-surgery physical therapy and home exercises Quad sets, hamstring curls, heel raises, and heel dig bridging Building strength and flexibility in your knee and legs will help prevent future degeneration of the knee Regularly perform exercises that strengthen your leg muscles Use of protective gear during sports or a brace…

    • 221 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Your ACL is the Anterior Cruciate Ligament. It is one of the four ligaments that stabilizes your knee so there is no excessive forward movement. The ACL also controls the twisting and rotation of your knee. So in other words, it is a pretty important part of your knee.…

    • 514 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Acl Injury Research Paper

    • 352 Words
    • 2 Pages

    The Injury The ACL or Anterior Cruciate Ligament attaches from the front of the tibia to the back of the femur. It is an important ligament in which keeps the tibia from sliding too far forward in relation to the femur bone and provides stability to the knee joint in sagittal plane movements. Injuries to the ACL are very common in individuals who have the knee in an awkward position such as stopping suddenly while jogging or sprinting, a rapid change in direction, and an abnormal landing stance that leaves the knee joint locked. Your ACL can be injured if your knee joint is bent backward, twisted, or bent side to side.…

    • 352 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    ACL tears happen to both men and women, but according to studies by the NCAA’s Injury Surveillance System “female athletes are as much as four times more likely to suffer ACL Injuries than their male counterparts” (Clardie). One of the most common beliefs as to why this happens is because women possess a different bone structure than men. Women almost always have a wider hip and pelvic structure than men; because of this, women experience increased stress on their knee compartments, ligaments, and muscles (Schmidt). Specifically, the angle at which the femur connects to the knee is wider than males, so women have pressure surrounding their ACL (Musgrave). Also, women have a tendency to have “valgus knees,” which means that women commonly have knees that angle in and touch one another when they are straightened.…

    • 1294 Words
    • 6 Pages
    Improved Essays
  • Great Essays

    A 30-year-old skier takes a sharp turn on the slopes and hears a dreaded “pop” in his right knee. He has ruptured the anterior cruciate ligament (ACL)—a band of tissue that’s important for stabilizing the joint. After icing, compressing, and elevating his swollen knee, he visits the doctor. Now it’s time to decide on treatment. If he’s an elite athlete or has additional knee damage, the choice is fairly clear: reconstructive surgery to replace the ACL, plus intense physical therapy.…

    • 1528 Words
    • 7 Pages
    Great Essays
  • Brilliant Essays

    Essay On ACL Injury

    • 2145 Words
    • 9 Pages

    ACL injuries are of the most intriguing sports injuries today due to their causes, recovery path, prevention methods, and how the injury has progressed in technology. The ACL is the center of much responsibility when it comes to the knee. The ACL runs across the knee joint, and keeps the shin from sliding forward, and provides stability when performing rotational movements. It is one of the many ligaments that holds the knee joint in place, and keeps the knee from buckling.…

    • 2145 Words
    • 9 Pages
    Brilliant Essays
  • Improved Essays

    The ACL is like a rubber band that holds your knee together enabling you to bend, jump, cut, and run. Without it, your knee could give out at any given time. The first time I experienced it, I was playing soccer in P.E. The second time I was playing volleyball. I had to have knee reconstruction surgery after both.…

    • 1470 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Every athlete knows that injuries are part of the game. Some are big others are small. Nobody wants to get injured, unless you hate the sport, but it’s guaranteed that a few weeks can be missed through an athletic career due to injuries. However, there is always one injury that athletes fear more than any other, and that is surgery to fix any torn ligaments in your knee. My freshman year of high school, I was the unlucky soul that suffered a torn ACL and Meniscus in my left knee.…

    • 1202 Words
    • 5 Pages
    Improved Essays

Related Topics