An Arthrogram of the knee uses CT technology to obtain pictures of your knee joint after a contrast material has been injected into the joint. This creates images of the soft tissue structures of your joint, such as tendons, ligaments, muscles and cartilage which are not always visible without administering contrast material. Knee Arthrograms are a useful diagnostic tool.
What happens during a Knee Arthrogram?
A. Before your procedure
What to bring
Your request form
Any relevant previous imaging
Your Medicare card and any concession cards
Preparation – In the week before your procedure
You must advise us of any blood-thinning medication your are taking such as Aspirin, Warfarin, Plavix or Iscover and stop taking it for a period of time before your treatment. Please contact us for advice.
Preparation – the day of your procedure
There is no specific preparation and you may eat and drink as desired before and after the procedure. You will be asked to fill out a questionnaire regarding your health status, medication, and any known allergies. If there is any chance you may be pregnant, please inform us before your scan. You may also be asked to change into a gown and remove some jewellery for your scan.
B. During your Knee Arthrogram
When you are transferred to the CT room you will be made comfortable on the examination table.
Your skin will then be cleaned and a local anaesthetic will be injected into site. This may temporary sting until the skin becomes numb (up to 30 seconds).
The radiologist will then insert a fine needle into your knee joint. Following insertion, the needle will be guided into position using CT or Ultrasound, and between 2-10mls of X-ray dye (contrast) will be applied to the needle insertion site. The team will then take a CT scan of the joint.