Radio-guided / echo-guided infiltration

As the name suggests, infiltration is a medical process that involves injecting a drug, usually a cortisone derivative, or joint gel (hyaluronic acid, viscosupplementation) into the precise location of the pain. When this infiltration is called "radio-guided", this means that the gesture is performed under radiological or ultrasound guidance and makes it possible to continuously monitor the position and path of the needle. The gesture is more precise by avoiding risk areas, certain nerves or blood vessels, shows on the live screen where the drug precisely diffuses. The injection can be made in a joint affected by osteoarthritis or arthritis: this is called joint infiltration, but also in soft tissues such as tendon sheaths, cysts, bursae or areas of conflict mechanical. The injection can also be done near the emergence of a spinal nerve that comes out of the spine (spine), this will be called spinal infiltration. The gesture can be guided either under fluoroscopic control (television), which is the case for most joint infiltrations, or under ultrasound control, which is the case for most soft tissue infiltrations, or even under CT control for most spinal infiltrations.