Knee Bursa Anatomy

Between the skin and patella. Anatomy of the knee bursae a bursa is a small sac made of fibrous tissue that has an inner lining of synovial type membrane.

Anatomy Knee Physician Assistant 2014 With Lockwood At

A bursa is a small fluid filled sac bounded by synovial membrane having an inner capillary layer of viscous synovial fluid.

Knee bursa anatomy. This is usually when there is excessive friction over the bursa causing it to either become inflamed or when it dries out so it no longer works properly. A bursa is a fluid filled structure that is present between the skin and tendon or tendon and bone. Bursae one is a bursa are fluid filled sacs that help cushion the knee.

Knee bursitis causes pain and can limit your mobility. Knee bursitis is inflammation of a small fluid filled sac bursa situated near your knee joint. So lets have a look at knee bursitis anatomy particularly focusing on the 5 main knee bursa which are the ones that are most commonly injured.

A knee bursa also known as a subcutaneous prepatellar bursa aids with movement when we walk run stretch or even cross our legs. These are located where muscles and tendons move over bony joint areas. Typically bursae are located around large joints such as the shoulder knee hip and elbow1 inflammation of this fluid filled structure is called bursitis.

Sagittal section of right knee joint thus showing only frontal bursae. The bursae of the knee are the fluid sacs and synovial pockets that surround and sometimes communicate with the joint cavity. Location of anserine pes anserinus bursa on medial knee.

The knee contains three important groups of bursae. The main function of a bursa is to reduce friction between adjacent moving structures. They are located over the joints and bony protuberances and may or may not interact with the joint.

They decrease friction and protect the fragile structures from stress. It is filled with synovial fluid or lubricant made by the membrane. In the ankle two bursae are found at the level of insertion of the achilles tendon.

The superficial one is located between the skin and the tendon and the deep one is located between the calcaneus and the tendon. Thin walled and filled with synovial fluid they represent the weak point of the joint but also produce enlargements to the joint space. The prepatellar bursae lie in front of the patella.

Their function is to reduce friction caused by muscles and tendons moving against skin and bones as well as to facilitate movement. Between the femur and quadriceps femoris it is attached to the articularis genu muscle and communicates with the synovial cavity. There are four bursae anterior to the knee joint.

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