Knee Locking and Catching
Knees have the ability to bend forward and back, as well as rotate slightly. When a knee is unable to execute these actions, it impairs mobility and the capacity to complete daily chores such as sitting, standing, squatting, or kneeling. A locked knee occurs when a knee cannot be bent or straightened so it gets stuck or “locked” in a certain position for an extended period of time. Knee catching is similar but to a lesser degree.
There are two forms of locked knees: one that is due to inability to move because of an actual physical or mechanical restriction and there is one that feels locked due to the pain involved in moving it. When a person’s knee joint is effectively frozen into place and cannot move, this is known as a true locked knee. When a person’s knee feels like it is locked in place because of pain and inflammation, this is known as a false locked knee. However, while this is the more colloquial way to use the term “knee locking,” it is also more prevalent.
A false locked knee can result from pain and inflammation associated with an injury or degenerative condition that affects the knees biomechanics.
Chondromalacia is the knee usually causes pain, typically around the kneecap or deep in the kneecap. You can also have some grinding sensations or crepitus which are sounds and noises coming from around the knee with certain motions. Typically, pain and grinding sensations are worse with bending the knee, especially for prolonged periods of time, kneeling on the knee, walking downstairs, or running downhill. Standing after prolonged sitting or an immobility period where the knee is bent can cause some discomfort as well. Some people may experience swelling, others may experience locking or catching in the knee, feeling the knee wants to give out, or a feeling of weakness….
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Ehlers-Danlos Syndrome (EDS)
Disorders that affect and weaken the connective tissues such as tendons and ligaments. It is a hereditary disorder which means you are born with it. EDS has many different signs and symptoms which can vary significantly depending upon the type of EDS and its severity. It most commonly affects the skin, joints, and blood vessels. Joints are typically hypermobile with excessive joint range of motion because of a defect in collagen formation. In most cases Ehlers-Danlos syndrome is inherited. That is to say that you are born with it. The two main ways EDS is inherited are: autosomal dominant inheritance and autosomal recessive inheritance…
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In the human body, a joint is simply where 2 ends of bone come together. At the ends of these bones, there is a thick substance called “Hyaline Cartilage” that lines the ends. Hyaline cartilage is extremely slippery which allows the two ends of the bone to slide on top of each other. Then there is a capsule that connects the two ends filled with “synovial fluid” that acts as a further lubricant to make it more slippery!
Arthritis in the knee is defined by loss of the hyaline cartilage plus other changes that happen to the bone such as additional bone being laid down (bone spurs/osteophytes). The cartilage layer is worn down to the point of exposing the underlying bone they cover…
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The medial collateral ligament AKA MCL is a thick, strong band of connective tissue on the inside portion of your knee. It connects the top part of the tibia (shin) to the bottom part of the femur (thigh). This is a vital ligament that works along the lateral collateral ligament (LCL), anterior cruciate ligament (ACL), and posterior cruciate ligament (PCL) to bring stability, structure, and movement to the knee. The MCL provides support and stability for the inside (medial) aspect of the knee. MCL tears are a common injury in sports such as football, hockey, and skiing. The ligament can…
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The meniscus is a c-shaped piece of cartilage in the knee that functions as an important shock absorber. It is sandwiched between the thigh and shin bone. There are two menisci per knee. One on the inside portion of the knee (medial) one on the outside aspect (lateral).
The knee meniscus is susceptible to injury. The most common injury is a tear in the meniscus. Not all meniscus tears however cause pain. When symptomatic a meniscus tear can cause pain, swelling, and restriction in range of motion.
Tears in the knee meniscus can arise from trauma or degeneration. There are many different types of meniscus tears based upon locations….
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What is the Patellar Tendon? A tendon is a piece of connective tissue that connects muscle to bone. It serves to move the bone or a given joint. The patellar tendon is a major tendon in the knee. It is located at the bottom of the kneecap (patella) and stretches down to the shin. The patellar tendon enables you to extend your knee, kick, run, and jump. What is Patellar Tendinitis?
Patellar tendinitis is an irritation and inflammation of the tendon that connects your kneecap (patella) to your shinbone. Patellar tendinitis, also known as jumper’s knee, can affect anyone. The most common symptom is pain at the shin or lowest part of the kneecap…
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