CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients

Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Anurag Chahal [verfasserIn] Prathiba Rajalakshmi [verfasserIn] Shah A Khan [verfasserIn] Shishir Rastogi [verfasserIn] Deep N Srivastava [verfasserIn] Shivanand Gamanagatti [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Schlagwörter:	interventional radiology osteoid osteoma therapy

Übergeordnetes Werk:	In: Indian Journal of Radiology and Imaging - Thieme Medical and Scientific Publishers Pvt. Ltd., 2004, 27(2017), 02, Seite 207-215
Übergeordnetes Werk:	volume:27 ; year:2017 ; number:02 ; pages:207-215

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.4103/ijri.IJRI_260_16

Katalog-ID:	DOAJ059476001

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653		0	\|a Medical physics. Medical radiology. Nuclear medicine
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spelling	10.4103/ijri.IJRI_260_16 doi (DE-627)DOAJ059476001 (DE-599)DOAJ32cac8cc072f401586462ce007276b9d DE-627 ger DE-627 rakwb eng R895-920 Anurag Chahal verfasserin aut CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication. interventional radiology osteoid osteoma therapy Medical physics. Medical radiology. Nuclear medicine Prathiba Rajalakshmi verfasserin aut Shah A Khan verfasserin aut Shishir Rastogi verfasserin aut Deep N Srivastava verfasserin aut Shivanand Gamanagatti verfasserin aut In Indian Journal of Radiology and Imaging Thieme Medical and Scientific Publishers Pvt. Ltd., 2004 27(2017), 02, Seite 207-215 (DE-627)335259626 (DE-600)2059213-9 19983808 nnns volume:27 year:2017 number:02 pages:207-215 https://doi.org/10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/article/32cac8cc072f401586462ce007276b9d kostenfrei http://www.thieme-connect.de/DOI/DOI?10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/toc/0971-3026 Journal toc kostenfrei https://doaj.org/toc/1998-3808 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2017 02 207-215
allfields_unstemmed	10.4103/ijri.IJRI_260_16 doi (DE-627)DOAJ059476001 (DE-599)DOAJ32cac8cc072f401586462ce007276b9d DE-627 ger DE-627 rakwb eng R895-920 Anurag Chahal verfasserin aut CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication. interventional radiology osteoid osteoma therapy Medical physics. Medical radiology. Nuclear medicine Prathiba Rajalakshmi verfasserin aut Shah A Khan verfasserin aut Shishir Rastogi verfasserin aut Deep N Srivastava verfasserin aut Shivanand Gamanagatti verfasserin aut In Indian Journal of Radiology and Imaging Thieme Medical and Scientific Publishers Pvt. Ltd., 2004 27(2017), 02, Seite 207-215 (DE-627)335259626 (DE-600)2059213-9 19983808 nnns volume:27 year:2017 number:02 pages:207-215 https://doi.org/10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/article/32cac8cc072f401586462ce007276b9d kostenfrei http://www.thieme-connect.de/DOI/DOI?10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/toc/0971-3026 Journal toc kostenfrei https://doaj.org/toc/1998-3808 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2017 02 207-215
allfieldsGer	10.4103/ijri.IJRI_260_16 doi (DE-627)DOAJ059476001 (DE-599)DOAJ32cac8cc072f401586462ce007276b9d DE-627 ger DE-627 rakwb eng R895-920 Anurag Chahal verfasserin aut CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication. interventional radiology osteoid osteoma therapy Medical physics. Medical radiology. Nuclear medicine Prathiba Rajalakshmi verfasserin aut Shah A Khan verfasserin aut Shishir Rastogi verfasserin aut Deep N Srivastava verfasserin aut Shivanand Gamanagatti verfasserin aut In Indian Journal of Radiology and Imaging Thieme Medical and Scientific Publishers Pvt. Ltd., 2004 27(2017), 02, Seite 207-215 (DE-627)335259626 (DE-600)2059213-9 19983808 nnns volume:27 year:2017 number:02 pages:207-215 https://doi.org/10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/article/32cac8cc072f401586462ce007276b9d kostenfrei http://www.thieme-connect.de/DOI/DOI?10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/toc/0971-3026 Journal toc kostenfrei https://doaj.org/toc/1998-3808 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2017 02 207-215
allfieldsSound	10.4103/ijri.IJRI_260_16 doi (DE-627)DOAJ059476001 (DE-599)DOAJ32cac8cc072f401586462ce007276b9d DE-627 ger DE-627 rakwb eng R895-920 Anurag Chahal verfasserin aut CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication. interventional radiology osteoid osteoma therapy Medical physics. Medical radiology. Nuclear medicine Prathiba Rajalakshmi verfasserin aut Shah A Khan verfasserin aut Shishir Rastogi verfasserin aut Deep N Srivastava verfasserin aut Shivanand Gamanagatti verfasserin aut In Indian Journal of Radiology and Imaging Thieme Medical and Scientific Publishers Pvt. Ltd., 2004 27(2017), 02, Seite 207-215 (DE-627)335259626 (DE-600)2059213-9 19983808 nnns volume:27 year:2017 number:02 pages:207-215 https://doi.org/10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/article/32cac8cc072f401586462ce007276b9d kostenfrei http://www.thieme-connect.de/DOI/DOI?10.4103/ijri.IJRI_260_16 kostenfrei https://doaj.org/toc/0971-3026 Journal toc kostenfrei https://doaj.org/toc/1998-3808 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2017 02 207-215
language	English
source	In Indian Journal of Radiology and Imaging 27(2017), 02, Seite 207-215 volume:27 year:2017 number:02 pages:207-215
sourceStr	In Indian Journal of Radiology and Imaging 27(2017), 02, Seite 207-215 volume:27 year:2017 number:02 pages:207-215
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institution	findex.gbv.de
topic_facet	interventional radiology osteoid osteoma therapy Medical physics. Medical radiology. Nuclear medicine
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container_title	Indian Journal of Radiology and Imaging
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publishDateDaySort_date	2017-01-01T00:00:00Z
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issn	19983808
topic_title	R895-920 CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients interventional radiology osteoid osteoma therapy
topic	misc R895-920 misc interventional radiology misc osteoid osteoma misc therapy misc Medical physics. Medical radiology. Nuclear medicine
topic_unstemmed	misc R895-920 misc interventional radiology misc osteoid osteoma misc therapy misc Medical physics. Medical radiology. Nuclear medicine
topic_browse	misc R895-920 misc interventional radiology misc osteoid osteoma misc therapy misc Medical physics. Medical radiology. Nuclear medicine
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hierarchy_parent_title	Indian Journal of Radiology and Imaging
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title	CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients
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title_full	CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients
author_sort	Anurag Chahal
journal	Indian Journal of Radiology and Imaging
journalStr	Indian Journal of Radiology and Imaging
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author_browse	Anurag Chahal Prathiba Rajalakshmi Shah A Khan Shishir Rastogi Deep N Srivastava Shivanand Gamanagatti
container_volume	27
class	R895-920
format_se	Elektronische Aufsätze
author-letter	Anurag Chahal
doi_str_mv	10.4103/ijri.IJRI_260_16
author2-role	verfasserin
title_sort	ct-guided percutaneous radiofrequency ablation of osteoid osteoma: our experience in 87 patients
callnumber	R895-920
title_auth	CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients
abstract	Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication.
abstractGer	Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication.
abstract_unstemmed	Purpose: To evaluate the technical and clinical success of radiofrequency ablation of osteoid osteoma and analyze the factors responsible for clinical success. We also tried to investigate the role of follow-up computed tomography (CT) imaging. Materials and Methods: This is a prospective study approved by the institute's ethics committee involving 87 patients with appendicular osteoid osteoma. CT-guided radio frequency ablation was performed using a bipolar ablation system. Patients were followed up over 15.4 (4–24) months for pain, and clinical success/failure was determined using established criteria. Patients with clinical failure were taken for repeat ablation. Follow-up CT was obtained at 6 months and correlated with clinical success. Procedural scans were later reviewed for technical success in a blinded manner and correlated with clinical success along with other imaging and patient characteristics. Results: Mean pre-procedure visual analog scale (VAS) score was 7.0 ± 0.8. Primary success rate after single session was 86.2%(75/87 patients), and overall success rate after one/two sessions was 96.6%(84/87). No major complications were noted. Technical success rate was 89.7%(78/87). All 9 patients who had a suboptimal needle positioning had recurrence where as three patients had recurrence despite technical success. None of the imaging characteristics or history of prior intervention was significantly associated with clinical success. Follow-up CT showed advanced bone healing in 48 lesions, and was confined to the treatment success group. Alternately, minimal/absent bone healing was seen in all (12) patients of primary treatment failure and 27 patients with treatment success. Conclusions: CT-guided percutaneous radio frequency ablation is a safe and highly effective treatment for osteoid osteomas even in recurrent and residual cases. Technical success is the most important parameter affecting the outcome. Post radio frequency ablation CT findings have a good positive but a poor negative predictive value in prognostication.
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title_short	CT-guided percutaneous radiofrequency ablation of osteoid osteoma: Our experience in 87 patients
url	https://doi.org/10.4103/ijri.IJRI_260_16 https://doaj.org/article/32cac8cc072f401586462ce007276b9d http://www.thieme-connect.de/DOI/DOI?10.4103/ijri.IJRI_260_16 https://doaj.org/toc/0971-3026 https://doaj.org/toc/1998-3808
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author2	Prathiba Rajalakshmi Shah A Khan Shishir Rastogi Deep N Srivastava Shivanand Gamanagatti
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up_date	2024-07-03T23:39:03.348Z
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