Personal Narrative: ACL Injury

Dr. Boden of the Orthopedic Center in Rockville states, “Young women are two to eight times more likely than their male counterparts to injure their ACL.” Although there are some factors that put others at a higher risk of tearing their ACL, like this gender one, ACL tears are common and can happen

There have been many studies done to explain the higher rate of ACL injury in female athletes. The most convincing findings relate to knee kinematics and neuromuscular control. In a study of 20 subjects (10 male and 10 female) forces from jump tasks were recorded using 3-D videography and force plates. One conclusion from the study was that force on the ACL was greatest during the landing phase of a jump tasks. Females frequently showed more leg extension and valgus movements during the landing phase, which also puts more stress on the ACL (Chappel et all, 2002). A similar study found that internal rotation combined with valgus movement creates

With an ever increasing number of people becoming involved with athletic activities, there is an increasing number of injuries occurring which can be devastating for the individual. Most of the injuries that affect athletes occur in one of four structures in the human body: bones, muscles, tendons, or ligaments. Because ligaments attach bone to bone and play a major part in providing stability for joints, the major stabilizing ligament in the knee, the anterior cruciate ligament (ACL), assists in performing everyday actions of the human body including sitting, standing, walking, running, dancing, and participating in other sports. The injury that specifically affects this ligament is very serious and always

The Anterior Cruciate Ligament also known as the ACL is deemed the most commonly torn ligament in the knee and can result from both contact and noncontact injuries. Most Anterior Cruciate Ligament injuries result from an extreme force on the lateral side of the person’s knee causing a valgus force which pushes the knee inward (Kisner & Colby, 2012, pp. 802-803). This injury to the side of the knee can also cause a “Terrible Triad” injury which also injures both the medial meniscus and the medial collateral ligament (Kisner & Colby, 2012, p. 803). Our textbook further states that “the most common noncontact mechanism is a rotational mechanism in which the tibia is externally rotated on the planted foot….this mechanism can account for as many as 78% of all ACL injuries” (Kisner & Colby, 2012, p. 803). If the person does not seek medical help with this injury they are susceptible to also injuring the remaining support ligaments as well. Patients usually present with joint effusion; possibly 25 degrees of flexion, joint swelling if blood vessels are involved, limited ROM, stress pain and instability along with quads avoidance gait patterns (Kisner & Colby, 2011, p. 208)

Non-contact ACL tears are more common in sports that require jumping and pivoting. (Washington, 2009, pg. 1)

It’s safe to say 2016 has been an interesting year for me. I went from college track star to drunken college dropout all in the span of 4 months. In the beginning of January I had everything going for me. Indoor track season had just begun and I was expected to dominate the 200 and 60 meter dashes. However a left knee injury would not allow those plans to happen and would lead to the most destructive 4 months of my life.

Football is the most popular sport in the world.1 Playing football can improve musculoskeletal, metabolic, and cardiovascular functions.2 However, football is one of the sports that have the highest risk of ACL injury.3,4 The incidence rates of ACL injury in soccer range 0.15% - 3.67% per person per year and 0.07 - 1.08 per 1000 sports exposures across various age and competition levels.5,6 The majority of ACL injuries occur without external contact to the knee joint.4,8,15

One of the most common injuries related to the knee is the Anterior Cruciate Ligament (ACL) injury. This is a tear or sprain that affects the knee joints and can be treated via surgery. Notably, athletes such as footballers and basketballers are more prone to these type of injuries than people who do not engage in sports activities. What is more, these types of injuries usually range from the simple and small sprains to the severe injuries where the ACL is torn completely. Although anterior cruciate ligament injuries are common, female are more vulnerable to the injuries than their male counterparts. Particularly, the incidence rate of females is about 9.7 times more probable to occur than the men participating in the same activities (Renstrom

Anterior cruciate ligament (ACL) injury is a common sports injury occurs widely in the USA with the majority of suffering by healthy individuals with 70% of non contact period, during a variety of movements such as jump landing, cutting and pivoting (21). Different risk factors should be considered for injury, such as environmental, hormonal and biomechanical (18, 19). ACL injury prevalence is very high in soccer as well as other sports in females compared with males (29). Anterior shear force, valgus collapse, quadriceps to hamstring strength ratio (1, 21, 35, 37) are considered as other main risk factors in both genders. Co-contraction of the hamstring and quadriceps has been shown to provide dynamic stability to the frontal plane at the knee that protects maximum knee abduction loading (35). So, the main focus of the study should be on muscular strength between agonist –antagonist muscle of lower limbs and recovery after injury. Female athletes get injured almost 2-8 time higher than the male counterparts (1,5,7,19,21,24,29,33,35). Interesting point for comparing injuries in sports, dominancy of leg plays a role in ACL injury. In a non contact injury, females are more prone to get injured in their supporting leg, whereas male soccer athletes tend to injure the ACL in their preferred kicking leg (5). Biomechanical point of view, such as more extended hip-knee landing technique postures, knee pressure

Regarding today’s issue for the optimal management for the ACL tears is reconstructive surgery which should be mention. The surgery may not be the right choice for every patient, but almost universally recommended for the patients who are with the high risk life styles and means require heavy work or any athlete who is dreaming to continuing his or her career and activities. The other indication are necessary for ACL surgery include severe injuries to meniscus or other knee joint ligaments repeated parts of giving way instead of rehabilitation .The ligamentous laxity that make recurrent instability with daily activities living70.

An ACL is the Anterior Cruciate Ligament (ACL) which is a ligament in the knee and is an essential internal stabilizer of the knee joint and helps in restraining hyperextension. It is injured when it’s when the biomechanics of this ligaments limits are exceeded or over stretched, often with a hyperextended mechanic. It was thought that this occurred in sports where there was a lot of contact and when other structures were often involved. In the present day, the ACL injury seems to be more of a contactless injury such as; a dismount from a layup in basketball. Both forms of the injury occur more frequently in athletes than in the general population. They are also more established in alpine skiing, Association football, American football, Australian Rules football, basketball, rugby, professional wrestling, martial arts, and artistic gymnastics. It is also three times more likely to happen in males then it is in male athletes. The consequences of the injury are down to how much of the knee stability is affected and if injuries to other structures are badly damaged. This all varies from each and

The acute ACL injury is associated with other findings including large hemarthrosis & bruises of the bone that are absent with chronic tear of ACL, however there may be anterior tibial subluxation and PCL buckling because of residual laxity of the joint. A deepened sulcus of the condylo-patellar junction on the lateral condyle of the femur, called ‘‘notch sign’’ is considered a sign of chronic insufficiency of ACL, however it may also be noted in acute traumatic injury of ACL. ( 49

When it comes to sports injuries, one of the most devastating and potentially career ending injuries is damage to the anterior cruciate ligament (ACL). It is one of the most common injuries taking victim to over 80,000 people every year in the United State alone and costing them around one to two billion dollars to repair and rehab it. ACL injuries can happen in many ways, but is usually a non-contact injury while executing a movement or skill often used. Both men and women are vulnerable of injuring their ACL, however, women are more likely to suffer an injury to their ACL because of many reasons. First, women are at higher risk of ACL injuries due to differentials in body characteristics such as a decreased femoral notch width and an increased in Q-angle in their leg. Secondly, hormonal characteristics such as a higher blood estrogen concentration can also be a factor in their higher risk of ACL injuries. Unfortunately, humans cannot control these characteristics, but there are other factors that can be

This assignment will focus on the gross and histological structure of the anterior cruciate ligament (ACL), the biomechanical changes of the lower limb when it is ruptured and the other structures which help to stabilise an uninjured knee. It will be split into three separate parts.

Myosin is the protein that moves beside the actins filaments that is within the sarcomere of muscle fibers, in which will create a contraction as it slides past one another. Myosin and actins makes up actomyosin, which is a protein complex found in muscle fibers. Before a contraction occurs, stimulation or sensory excitement must be present with a potential action of a nerve that connects to a muscle. However, the nerve connected to the muscle does not exhilarate fully, but to a few muscle fibers. It reacts to a sensory excitement in each sarcomere that is between the actin and myosin as the impulses reach the muscle fibers. When the muscles are being utilized, myosin will need large amounts of ATP. Once the sacromeres shorten, the muscles contract. Without the skeletal muscle tissue contractions, humans wouldn’t be able to walk, bite, or carry