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  1. What are some common forms of knee injury? Some of the more common knee injuries include: ACL injury. An ACL injury is a tear of the anterior cruciate ligament (ACL) — one of four ligaments that connect your shinbone to your thighbone. Fractures. Torn meniscus. Knee bursitis. Patellar tendinitis. Consult with Dr. Lalit Modi Dr. Lalit Modi

    • Fractures. Any of the bones in or around the knee can be fractured. The most commonly broken bone in the joint is the patella or kneecap. High impact trauma, such as a fall or car accident, causes most knee fractures.
    • Anterior cruciate ligament injuries. Share on Pinterest. ACL injuries can range from grade 1 to 3 in severity. The anterior cruciate ligament (ACL) runs diagonally down the front of the knee, providing critical stability to the joint.
    • Dislocation. Dislocating the knee happens when the bones of the knee are out of their proper placement and alignment. In a knee dislocation, one or more of the bones may slip out of place.
    • Meniscal tears. When people refer to torn cartilage in the knee, they are probably talking about a meniscal tear. The menisci are two rubbery wedges of cartilage between the thighbone and shinbone.
    • Bones. Three bones meet to form your knee joint: your thighbone (femur), shinbone (tibia), and kneecap (patella).
    • Articular cartilage. The ends of the femur and tibia, and the back of the patella are covered with articular cartilage. This slippery substance helps your knee bones glide smoothly across each other as you bend or straighten your leg.
    • Meniscus. Two wedge-shaped pieces of meniscal cartilage act as "shock absorbers" between your femur and tibia. Different from articular cartilage, the meniscus is tough and rubbery to help cushion and stabilize the joint.
    • Ligaments. Bones are connected to other bones by ligaments. The four main ligaments in your knee act like strong ropes to hold the bones together and keep your knee stable.
  2. Bursitis refers to the irritation and inflammation of fluid filled sacs that can be found surrounding the joint that act to absorb shock. These sacs also help to minimize the impact of friction. Two primary bursa are located in the knee and one or both may become infected, irritated or inflamed. However there are 11 total bursae in each knee.

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    If the knee is stressed from a specific direction, then the ligament trying to hold it in place against that force can stretch or tear. These injuries are called sprains. Sprains are graded as first, second, or third degree based upon how much damage has occurred. Grade-one sprains stretch the ligament but don't tear the fibers; grade-two sprains p...

    Patellofemoral syndrome occurs when the underside of the patella becomes inflamed if irritation develops as the underside of the kneecap rubs against the femoral condyle with each flexion and extension of the knee. This inflammation can cause localized pain, especially with walking down stairs and with running. Treatment includes ice, anti-inflamma...

    Pregnant women are at higher risk for knee injury and pain because of increased weight, the body's shifted center of gravity, and hormonal changes that can weaken ligaments and make them more lax.

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