Percutaneous CT Guided Radiofrequency Ablation (RFA)

Percutaneous CT Guided Radiofrequency Ablation (RFA)

Percutaneous CT Guided Radiofrequency Ablation (RFA) is currently the “Gold standard treatment” of Osteoid Osteoma

https://bonecancer.in/2020/05/01/osteoid-osteoma/

Radiofrequency Ablation’ (RFA) minimally invasive procedure.

How is RFA performed?

• Day Care basis
• Under local anesthesia and/or general anesthesia
• Diagnosis of Osteoid osteoma is confirmed under the CT scan.
• Small Scar (Similar to Core Needle Biopsy)
• In a percutaneous manner, Core needle biopsy is done under CT.
• RFA probe is inserted into the nidus and the area is burned by high temperature of 80-90 degree Celsius for 2-3 minutes under controlled environment.
• In situations of deep seated lesion or exuberant periosteal reaction, a drill is used to enter the nidus.
• The damage to surrounding bone is minimal.
• The individual can resume normal activities the same day with 95 % pain relief.

What is the recurrence rate of RFA?

• The risk of recurrence has been documented as 3-10 %.
• The recurrence is attributed to long nidus (greater than 10 mm) or wrong localization of the nidus or residual disease.

Can all osteoid osteomas be treated by RFA?

• Long nidus (>10 mm) may need multiple RFA or be surgical removal
• Spinal osteoid osteomas are not suitable for this technique due to the closeness of vital structures.
• Juxt-articular osteoid osteomas may be treated with caution due to resulting effusion and joint inflammation.