An aspiration is a procedure where we remove a small amount of fluid from an area like a joint using a needle under ultrasound guidance. An aspiration of a “Bakers Cyst” in the knee is a common procedure when there is pain and stiffness in the knee joint that may be caused by this swelling in the back of the knee.
The information below tells you what is involved and what the possible risks are of having an aspiration. It may not answer all your questions, so if you have any queries or concerns, please do not hesitate to contact us.
Why should I consider this procedure?
If you have a swelling in or around a joint, it may be very painful and limit your mobility. Removing this fluid will result in less pain and increased mobility. It will also allow more room in the joint or soft tissue space for the injection of other constituents like cortisone (steroids), Hyaluronic acid or PRP to be injected without increasing the overall total volume of fluid in the space. If the fluid accumulation is in a muscle eg from a large tear, then removing the fluid will allow the muscle fibres to come back together to heal faster. Occasionally fluid taken out of a joint may need to be be sent for further testing. We will discuss this further should it be required at the time of the procedure.