Ultrasound-guided infiltration

Ultrasound-guided infiltration involves injecting an anti-inflammatory drug into joints, bursae or tendons to relieve pain and reduce inflammation. The radiologist uses an ultrasound machine as a guide and to see the infiltration site clearly.

Ultrasound-guided infiltration can effectively treat many joint problems using the following techniques:

  • Cortisone infiltration
  • Viscosupplement infiltration (Synvisc)
  • Calcium washing
  • Nerve block

Fluoroscopy-guided infiltration

Fluoroscopy-guided infiltration allows the health care professional to see the bones and joints and verify their manoeuvres during the procedure. The following infiltrations are performed using fluoroscopy:

  • Intra-articular
  • Facet blocks
  • Foraminal (or selective epidural) blocks

Injecting platelet-rich plasma (PRP)

Injecting platelet-rich plasma (PRP) into a joint space or tendon is an increasingly common and proven treatment method for pain relief. It has several indications and involves very few risks. The use of a medical imaging device (ultrasound or fluoroscopy) allows the injection site to be precisely targeted while avoiding contact with nerves and blood vessels as much as possible.

The procedure is performed in aseptic conditions by a radiologist aided by a technologist or an assistant.

The radiologist takes a blood sample from the patient, then centrifuges it in a test tube containing a gel that separates the platelet-rich plasma from the red and white blood cells (where applicable). The platelet-rich plasma is then collected by the radiologist and injected under ultrasound or fluoroscopic guidance into the area to be treated. The beneficial effect may take a few weeks to be felt, but rarely more than a month.

PRP injection preparation