Percutaneous radiofrequency treatment of osteoid osteoma using cool-tip electrodes

Martel, José; Bueno, Ángel; Ortiz, Eduardo J.

doi:10.1016/j.ejrad.2005.05.014

Cited by 70 publications

(44 citation statements)

References 29 publications

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“…A larger fraction of complete ossification of 75% (24/32 patients) was found in a study by Martel et al [9] in successfully treated patients after 12 months of follow-up with CT scan. The higher percentage of complete ossification in the latter study may be related to the thermocoagulation technique that was applied.…”

Section: Discussionmentioning

confidence: 64%

“…From a theoretical perspective [4], we know that this type of electrode creates an approximately 1 cm spherical treatment zone of focal osteonecrosis. Martel et al [9] used a cooled electrode with an active tip of 10 mm. The treatment zone in this technique is expected to be larger, due to the longer size of the active tip, and the infusion of saline, allowing greater heat transmission [4].…”

Section: Discussionmentioning

confidence: 99%

“…Martel et al [9] reported that at a CT follow-up time of 12 months, all successfully treated patients without obvious bone healing were over 16 years of age. In our study, however, no statistically significant correlation between bone healing on CT and the patient's age was identified.…”

Section: Discussionmentioning

confidence: 99%

“…The healing pattern of the nidus of osteoid osteomas has been described by Lindner et al [8] and Martel et al [9]. Since these imaging features have been reviewed in only successfully treated patients, it is unclear whether the imaging features during follow-up correlate with the clinical results of the thermocoagulation.…”

Section: Introductionmentioning

confidence: 98%

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The healing pattern of osteoid osteomas on computed tomography and magnetic resonance imaging after thermocoagulation

et al. 2007

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Objective To compare the healing pattern of osteoid osteomas on computed tomography (CT) and magnetic resonance imaging (MRI) after successful and unsuccessful thermocoagulation. Materials and methods Eighty-six patients were examined by CT and 18 patients by dynamic gadolinium-enhanced MRI before and after thermocoagulation for osteoid osteoma. Thermocoagulation was successful in 73% (63/86) and unsuccessful in 27% (23/86) of patients followed by CT. Thermocoagulation was successful in 72% (13/18) of patients followed by MRI. After treatment, the healing of the nidus on CT was evaluated using different healing patterns (complete ossification, minimal nidus rest, decreased size, unchanged size or thermonecrosis). On MRI the presence of reactive changes (joint effusion, "oedema-like" changes of bone marrow and soft tissue oedema) and the delay time (between arterial and nidus enhancement) were assessed and compared before and after thermocoagulation. Results Complete ossification or a minimal nidus rest was observed on CT in 58% (16/28) of treatment successes (with > 12 months follow-up), but not in treatment failures. "Oedema-like" changes of bone marrow and/or soft tissue oedema were seen on MR in all patients before thermocoagulation and in all treatment failures. However, residual "oedema-like" changes of bone marrow were also found in 69% (9/13) of treatment successes. An increased delay time was observed in 62% (8/13) of treatment successes and in 1/5 of treatment failures. Conclusion Complete, or almost complete, ossification of the treated nidus on CT correlated with successful treatment. Absence of this ossification pattern, however, did not correlate with treatment failure. CT could not be used to identify the activity of the nidus following treatment. The value of MR parameters to assess residual activity of the nidus was limited in this study.

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Section: Discussionmentioning

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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The healing pattern of osteoid osteomas on computed tomography and magnetic resonance imaging after thermocoagulation

et al. 2007

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“…In one case in which there was doubt about the diagnosis and exact location, we obtained MRI. Like some authors [16,23], we believe the diagnosis of OO is mainly clinical and radiographic, and we did not perform regular biopsy for tissue confirmation, a practice consistent with other studies [14,22,23]. However, the practice of not performing a biopsy is not universal and others have performed tissue sampling before RFA [5,11,21,24,30,31,40,43].…”

Section: Methodsmentioning

confidence: 91%

Radiofrequency Ablation of Osteoid Osteoma in Atypical Locations: A Case Series

Akhlaghpoor

Aziz-Ahari

Shabestari

et al. 2010

Clinical Orthopaedics &Amp; Related Research

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Background Osteoid osteoma has a nidus surrounded by sclerotic bone with a size usually less than 20 mm. Its diagnosis is made on typical presentation of nocturnal pain and imaging findings. Excision of the niduses, which are often small and difficult to precisely identify, sometimes may result in resection of surrounding normal bone. Minimally invasive percutaneous treatments have been used to try to minimize resection of normal bone. Although minimally invasive radiofrequency ablation generally relieves pain, its ability to relieve pain is less well known in locations other than lower extremity long bones. Questions/purposes We determined the pain relief and complication rates after radiofrequency ablation of osteoid osteomas presenting in atypical locations and followed patients to assess possible recurrence or late complications. Patients and MethodsWe retrospectively reviewed 21 patients with osteoid osteomas in unusual locations (eg, hip, radioulnar joint, and proximal phalanx) in whom we used radiofrequency ablation. Postoperative activities were not restricted for any of the patients. We assessed the time for patients to become symptom free, their activity status, and possible recurrence or complications. The minimum clinical followup was 12 months (mean, 27.8 months; range, 12-37 months).

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Feasibility and safety of radiofrequency ablation for locally advanced pancreatic cancer

Girelli

Frigerio

Salvia

et al. 2010

British Journal of Surgery

179

164

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Percutaneous radiofrequency treatment of osteoid osteoma using cool-tip electrodes

Cited by 70 publications

References 29 publications

The healing pattern of osteoid osteomas on computed tomography and magnetic resonance imaging after thermocoagulation

The healing pattern of osteoid osteomas on computed tomography and magnetic resonance imaging after thermocoagulation

Radiofrequency Ablation of Osteoid Osteoma in Atypical Locations: A Case Series

Feasibility and safety of radiofrequency ablation for locally advanced pancreatic cancer

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