ledvæske

Ledvæske, also known as synovial fluid, is a viscous lubricating fluid found within the joint capsules of synovial joints. It is a clear to slightly yellowish fluid that is essential for the smooth and painless movement of bones. Ledvæske is produced by the synovial membrane, a specialized tissue lining the inner surface of the joint capsule.

The composition of ledvæske is primarily water, with dissolved electrolytes, proteins, hyaluronic acid, and a small number of cells, including leukocytes and synoviocytes. Hyaluronic acid is a key component that contributes to the fluid's viscosity and lubricating properties, reducing friction between the articular cartilages of the bones. The fluid also acts as a shock absorber, distributing the forces applied to the joint.

Ledvæske plays a crucial role in nourishing the articular cartilage, which lacks its own blood supply. Through a process of imbibition, nutrients from the ledvæske diffuse into the cartilage. Additionally, ledvæske helps to remove waste products from the cartilage. When joints are moved, the compression and release of the cartilage help to circulate the ledvæske, facilitating nutrient exchange and waste removal.

Disruptions to the normal production, composition, or circulation of ledvæske can lead to joint problems. Conditions such as osteoarthritis, rheumatoid arthritis, and gout are often associated with changes in ledvæske, which can result in pain, inflammation, and reduced joint mobility. Analysis of ledvæske through a procedure called arthrocentesis can provide valuable diagnostic information for these conditions.