What is a joint puncture?
A synovial puncture is a minimally invasive examination that allows the nature of the synovial fluid to be analyzed. Joint fluid, also known as synovial fluid, is a clear, viscous liquid that lubricates and nourishes the joints. It contains cells, proteins and other components that can provide information about the condition of the joint.
A joint puncture is usually performed under local anesthesia. The vet disinfects the skin over the affected joint and pricks the joint with a thin needle. He then draws off some fluid with a syringe and transfers it into a tube. The extracted fluid is then analyzed in the laboratory.
When is a joint puncture useful?
A joint puncture can be helpful for various joint diseases in dogs, such as
- Osteoarthritis: a chronic degeneration of the joint cartilage that leads to pain, inflammation and restricted movement.
- Arthritis: An acute or chronic inflammation of the joint that can be triggered by various causes, such as infections, autoimmune diseases or trauma.
- Gout: A metabolic disease in which uric acid crystals are deposited in the joints, leading to pain and inflammation.
- Tumors: Benign or malignant growths in or on the joint that can lead to swelling, pain and loss of function.
A joint puncture can also be performed before a planned operation on a joint in order to avoid or reduce possible complications.
What are the risks of a joint puncture?
A joint puncture is a relatively simple and safe procedure that rarely leads to complications. Possible risks include:
- Bleeding: There may be some bleeding from the puncture, but this usually stops quickly on its own.
- Infections: There is a small risk of bacteria getting into the joint and causing an infection. This can lead to fever, pain and swelling and may require antibiotic therapy.
- Injuries: There may be injury to nerves or blood vessels near the joint, which can lead to numbness or bruising.
To minimize these risks, a joint puncture should only be performed by an experienced veterinarian. In addition, the dog should rest the affected joint after the procedure and be checked regularly by the vet.