Πέμπτη, 18 Ιουλίου 2019

Percutaneous Image-Guided Cryoablation of Osteoblastoma
Roberto Luigi Cazzato1, Pierre Auloge1, Danoob Dalili2,3, Pierre De Marini1, Antonio Di Marco4, Julien Garnon1 and Afshin Gangi1 Show less
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Citation: American Journal of Roentgenology: 1-6. 10.2214/AJR.19.21390
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ABSTRACT :
OBJECTIVE. The aim of this observational study was to assess safety and clinical outcomes of percutaneous image-guided cryoablation (CA) to treat osteoblastomas (OBs) at various osseous sites.

MATERIALS AND METHODS. A retrospective search was performed to identify patients presenting with painful OBs who underwent CA at the University Hospitals of Strasbourg between March 2007 and December 2018. Ten patients (seven men, three women; median age, 21 years old) were identified and included. Medical records were reviewed to assess complications and clinical outcomes.

RESULTS. Median OB diameter was 16.5 mm (range, 16–28 mm). OBs were located in the spine (n = 7), calcaneus (n = 1), fibula (n = 1), and third metacarpal bone (n = 1). In 90% of cases (n = 9), one or more critical structures were within 1 cm of the OB (median distance, 5 mm; range, 2–8 mm), thus requiring extensive protective measures. Technical success was achieved in all cases. Two (20%) immediate neural complications were noted. One major complication was consistent with a permanent sensory deficit of the arm. One minor complication was consistent with a transient right Horner syndrome, which completely resolved after 48 hours with high-dose steroids. Median clinical follow-up was 12 months. Primary clinical success was 100% and 78% at 1 and 12 months of follow-up, respectively, with two patients presenting with recurring pain.

CONCLUSION. Percutaneous image-guided CA represents an effective therapeutic option for patients affected by painful OBs; the safety profile of the procedure is acceptable as long as comprehensive protective measures are deployed in light of the frequent close proximity of critical structures.

Keywords: bone, cryotherapy, osteoblastoma

References

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Address correspondence to R. L. Cazzato (roberto-luigi.cazzato@chru-strasbourg.fr).



Read More: https://www.ajronline.org/doi/abs/10.2214/AJR.19.21390

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