[CT-guided radiofrequency (RF) ablation of osteoid osteoma: clinical long-term results].

Abstract

PURPOSE:

To evaluate CT-guided radiofrequency (RF) ablation of osteoid osteoma using internally cooled monopolar RF electrodes for technical success, complications and clinical long-term success.

MATERIALS AND METHODS:

Between April 1999 and July 2006, 23 patients were treated under general anesthesia with CT-guided RF ablation using an internally cooled monopolar single RF electrode (Cool-tip, Valleylab, TycoHealthcare, Boulder, USA; active tip: 10 mm). For the removal of the nidus, we used either a manual or an automated drill. The technical success was evaluated by a CT scan (MSCT, Siemens Medical Solutions, Forchheim). The clinical long-term success was investigated by questioning patients prior to discharge, and after 6, 12 and 18 months. After 18 months, patients were interviewed on an annual basis.

RESULTS:

The technical success rate was 100 %. The nidus was located in n = 19 cases at the lower extremity and in n = 4 cases at the upper extremity. Minor complications were observed for n = 2 patients. The mean hospitalization time was 1.5 d (1-2 d). The mean follow-up was 75.9 months (18-120 months) for n = 23 patients. No local recurrence was observed. One patient had intermediate pain one week after RF ablation without recurrent symptoms.

CONCLUSION:

CT-guided RF ablation using an internally cooled monopolar single RF electrode is an effective and safe minimally invasive method for the treatment of osteoid osteoma with excellent clinical long-term success.

• Authors: D Schmidt, S Clasen, J F Schaefer, H Rempp, S Duda, J Trübenbach, C W König, B Erdtmann, C D Claussen, P L Pereira
• Journal: RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin (Rofo) Vol. 183 Issue 4 Pg. 381-7 (Apr 2011) ISSN: 1438-9010 [Electronic] Germany
• Vernacular Title: CT-gesteuerte Radiofrequenz (RF)-Ablation von Osteoidosteomen: klinische Langzeitergebnisse.
• PMID: 21246475 (Publication Type: Journal Article)
• Copyright: © Georg Thieme Verlag KG Stuttgart · New York.

Topics

• Adolescent
• Adult
• Bone Neoplasms (diagnostic imaging, pathology, surgery)
• Catheter Ablation (instrumentation, methods)
• Equipment Failure
• Female
• Follow-Up Studies
• Humans
• Length of Stay
• Male
• Middle Aged
• Minimally Invasive Surgical Procedures (methods)
• Osteoma, Osteoid (diagnostic imaging, pathology, surgery)
• Postoperative Complications (etiology)
• Surgery, Computer-Assisted (instrumentation, methods)
• Surgical Instruments
• Tomography, X-Ray Computed (instrumentation, methods)
• Treatment Outcome
• Young Adult