CT-guided radiofrequency ablation of osteoid osteoma: long-term results.

摘要: The aim of the study was to assess safety and efficacy CT-guided percutaneous radiofrequency (RF) ablation osteoid osteoma (OO). From 1997 2001, RF performed on 38 patients with OO, diagnosed clinically by radiography, scintigraphy, contrast-enhanced MRI, CT. Treatment via (n=29) or surgical (n=9) access, under CT guidance in all cases, an 18-gauge straight electrode. Patients were discharged within 24 h followed up (at 1 week every 6–12 months) MRI 6 scintigraphy (after year). technical success rate 100%. Complications occurred two patients, consisting local skin burns. follow-up range 12–66 months (mean ± SD, 35.5±7.5 months). Prompt pain relief return normal activities observed 30 patients. Persistent eight patients; refused further treated surgically; repeated six cases achieving successful results five. One patient reported residual is being evaluated for excision. Primary secondary clinical rates 78.9 (30/38 patients) 97% (35/36 patients), respectively. OO safe effective. lesions can be effectively re-treated. Several imaging modalities are needed diagnosis after treatment, particularly persistent symptoms.