Fig. 1

In an 11-year-old female patient admitted to outpatient clinic with feet pain, peripherally sclerotic and centrally hypodense lesion located in the calcaneus is shown on CT images (red arrow). a.) in pre-op axial sections, b.) in pre-op coronal sections, c.) in pre-op sagittal sections the nidus diameter was 7 mm, and the periosteal reaction (White arrow) thickness was 4 mm, d.) and in the image during processing a bone penetration needle (11 F; APRO Korea Inc., Gunpo, Korea) is inserted into the lesion nidus. Afterwards, the burning process is applied at 100 degrees for 4–6 min. The pre-procedural pain score was 10, the pain score decreased to 1 point in the 1st week and 3rd month after the procedure. The patient uses NSAIDs 7 times a week (1 daily) before the procedure, she does not use any NSAIDs after the procedure