How is a Normal Knee?


Fig Inside the Knee Joint

 

Fig: Xray of normal Knee Joint [Anteroposterior and Lateral view] 


Components of Knee Joint


  • Bones
    The knee is made up of the lower end of the thighbone (femur), the upper end of the shinbone (tibia), and the knee cap (patella). 
  • Cartilage
    Articular cartilage is the smooth, white tissue. It covers the ends of bones where they come together to form joints.
    Healthy cartilage in our joints makes it easier to move. It allows the bones to glide over each other with very little friction.
Knee Articular Cartilages
  • Meniscus
    The menisci are located between the femur and the tibia. These C-shaped wedges act as "shock absorbers" that cushion the joint. 
Knee Meniscus
  • Ligaments
    Ligaments hold the femur and tibia together and provide stability. 
Knee ligaments and Menisci together
  • Synovium
    The synovium is a thin cover that wraps around the bones in your joint. It makes a fluid that provides lubrication so your bones can move easily without resistance.
  • Bursa
    The bursa is a fluid-filled sac that provides cushioning and a smooth surface for the bones, muscles and tendons in your joints to move on.
    Fig: Knee Bursae
  • Tendons
    Tendons are fibrous bands of tissue that connect your muscles to your bones.
  • Muscles
    Muscles support your joints and help to move.
Muscles around Knee

Normally, all of these components work in harmony. But disease or injury can disrupt this harmony, resulting in pain, muscle weakness, and reduced function.

To maintain the fitness of all components, get to know your joint by Dr Sachin Karkamkar.


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Disclaimer: The information provided here should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. The information is provided solely for educational purpose and should not be considered a substitute for medical advice.