Radiofrequency Ablation of Osteoid Osteomas: Analgesia and Patient Satisfaction in Long-term Follow-up

Abstract

Purpose: To review the long term clinical outcomes in the treatment of osteoid osteoma (OO) using radiofrequency ablation (RFA).

Materials and Methods: Our retrospective study included 59 patients who were treated in the period from April 2001 to December 2012 due to a symptomatic OO using RFA. Here, the occurrence of complications and postoperative recurrence, as well as postoperative patient satisfaction were examined. Patients satisfaction was assessed by means of a telephone interview with the visual analogue scale (VAS).

Results: Mean follow-up was 50 months (2 – 116 months). The average size of the nidus was 6 mm (range 2 – 14 mm). After initial radiofrequency ablation 11.8 % (7/59) of patient showed a recurrence of symptoms. Symptoms could successfully be treated by a second ablation in 5 patients. Assisted success rate was therefore 96.6 % (57/59). The complication rate was 5.1 % (2 major and one minor complication). Furthermore we report a very high patient satisfaction and acceptance of therapy.

Conclusion: RFA is a very successful therapy of symptomatic OOs with a high patient satisfaction.

Key Points:

• Osteoid osteomas (OO) are rare benign bone tumors of the childhood and adolescence.

• Treatment of OOs with minimal-invasive radiofrequency ablation (RFA) shows a high patient satisfaction.

• RFA is by now the standard therapy of symptomatic OOs.

Citation Format:

• Gebauer B, Collettini F, Bruger C et al. Radiofrequency Ablation of Osteoid Osteomas: Analgesia and Patient Satisfaction in Long-term Follow-up. Fortschr Röntgenstr 2013; 185: 959-966

Zusammenfassung

Ziel: Ermittlung des klinischen Erfolgs und der Patientenzufriedenheit nach Radiofrequenzablation (RFA) von symptomatischen Osteoidosteomen (OO) im Langzeitverlauf.

Material und Methoden: Unsere retrospektive Studie umfasste 59 Patienten, die im Zeitraum von April 2001 bis Dezember 2012 aufgrund eines symptomatischen OO mittels RFA behandelt wurden. Dabei wurden Rezidive und Komplikationen sowie die postinterventionelle Patientenzufriedenheit ermittelt. Die Patientenzufriedenheit und der Restschmerz (visuelle Analogskala [VAS]) wurden mittels eines standardisierten Telefoninterviews ermittelt.

Ergebnisse: Der Nachbeobachtungszeitraum erstreckte sich im Durchschnitt über 50 Monate (2 – 116 Monate). Die durchschnittliche Größe des Nidus lag bei 6 mm (2 – 14 mm). Die initiale Radiofrequenzablation zeigte in 11,8 % (7/59) ein Rezidiv der Schmerzsymptomatik, das bei 5 Patienten mittels einer zweiten Ablation erfolgreich behandelt werden konnte. Die assistierte Erfolgsrate war somit 96,6 % (57/59). Die Komplikationsrate lag bei 5,1 % (2 Major- und eine Minor-Komplikation). Darüber hinaus konnten wir eine sehr hohe Patientenzufriedenheit und Therapieakzeptanz feststellen.

Schlussfolgerung: Die RFA ist ein sehr erfolgreiches Therapieverfahren von symptomatischen Osteoidosteomen mit hoher Patientenzufriedenheit.

Key words

ablation procedures - radiofrequency ablation - osteoid osteoma - complication - patient satisfaction

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