Basic and clinical studies of percutaneous radiofrequency ablation of osteoid osteoma using a standard electrosurgical generator.

For percutaneous radiofrequency ablation of osteoid osteoma for pain management, we used a standard electrosurgical generator instead of the radiofrequency generator system. First, we used the standard electrosurgical generator to determine the diameter of the coagulated area of normal femurs and humeruses of dogs under general anesthesia and to detect damage to normal tissue around the bone. We then used a standard electrosurgical generator to perform percutaneous radiofrequency ablation of the osteoid osteoma. All three patients were almost pain-free within the first 24 h after the procedure, and they were discharged the day after the operation, being hospitalized for only 2 days. We thus confirmed that percutaneous radiofrequency ablation using a standard electrosurgical generator produced results similar to those achieved with the radiofrequency generator system.