Radiofrequency treatment of the sacroiliac joint

Inflammation of the sacroiliac joint, or sacroiliitis, is very common and represents the most frequent cause in the differential diagnosis of low back pain. Most patients suffering from sacroiliitis present risk factors such as pain radiating to one leg, prior lumbar surgery, scoliosis, or a traumatic event.

 

When conservative treatment fails to relieve pain, ultrasound-guided injections are proposed. The effectiveness of this treatment is approximately 50%; however, some patients—particularly those with chronic conditions—experience pain recurrence. In such cases, radiofrequency treatment is indicated.

 

Treatment objective

The procedure consists of positioning electrodes along the sacroiliac joint and applying an electrical current. The thermal effect induces a lesion of the sensory fibers of the sacroiliac joint, allowing a reduction or even complete abolition of pain related to inflammation.

Indications

 

Procedure details

To improve treatment quality and precision, the procedure is performed using intraoperative CT scanning. A general anesthesia lasting approximately 20–30 minutes is therefore required.

 

The intervention begins with a pelvic CT scan under anesthesia. Using neuronavigation, four electrodes are positioned along the medial portion of the sacroiliac joint. These electrodes are then connected to a generator which, through thermal effects between the electrodes, produces a lesion of the sensory nerves of the joint.

 

The procedure lasts approximately 20 minutes. No surgical incision is required.

Risks of the procedure (<1%)

  • Intramuscular hematoma
  • Cutaneous infection
  • Thermal injury to the sacral nerves

 

Postoperative course

Hospitalization lasts 48 hours, during which the physiotherapist assesses the patient’s autonomy the day following treatment. In the days after the procedure, patients generally experience minimal pain and usually require only preventive analgesic treatment for 3 to 5 days.

Patients are reviewed two weeks after treatment to initiate postoperative physiotherapy.

 

If you require an evaluation for a radiofrequency treatment and wish to have it performed with us, you may contact us via the online form or by email : segretariato@neurochirurgia-robert.ch