Currently the “Gold standard treatment” of Osteoid Osteoma

Radiofrequency Ablation’ (RFA) minimally invasive procedure

How is RFA performed?

  • Day Care basis
  • Under local anaesthesia and/or general anaesthesia
  • 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.
  • Juxtarticular osteoid osteomas may be treated with caution due to resulting effusion and joint inflammation.


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  • Apollo Cancer Center
    Apollo Hospitals, Bengaluru

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