Abstract
Objective
To evaluate the use of a novel battery-powered drill, enabling specimen requirement while drilling, in radiofrequency ablation of osteoid osteoma as an alternative to conventional orthopedic drills.
Materials and methods
Between 2009 and 2013, altogether 33 patients underwent CT-guided radiofrequency ablation of an osteoid osteoma at our institution. To access the nidus of the clinically and radiologically suspected osteoid osteoma, a channel was drilled using the OnControl Bone Marrow Biopsy System (OBM, Arrow OnControl, Teleflex, Shavano Park, TX, USA) and a biopsy was taken. Procedure time (i.e., drilling including local anesthesia), amount of scans (i.e., single-shot fluoroscopy), radiation exposure, and the results of biopsy were investigated and compared retrospectively to a classical approach using either a manual bone biopsy system or a conventional orthopedic drill (n = 10) after ethical review board approval.
Results
Drilling the tract into the nidus was performed without problems in 22 of the 23 OBM cases. Median procedure time was 7 min compared to 13 min using the classical approach (p < 0.001). Median amount CT scans, performed to control correct positioning of the drill was comparable with 26 compared to 24.5 (p = NS) scans. Histologically, the diagnosis of osteoid osteomas could be determined in all 17 cases where a biopsy was taken. Radiofrequency ablation could be performed without problems in any case.
Conclusions
The use of the battery-powered drill was feasible and facilitated the access to the osteoid osteoma’s nidus offering the possibility to extract a specimen in the same step.
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Conflict of interest
This is an investigator-initiated technical note, and there are no conflicts of interest and nothing to disclose.
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Schnapauff, D., Streitparth, F., Jöhrens, K. et al. CT-guided radiofrequency ablation of osteoid osteoma using a novel battery-powered drill. Skeletal Radiol 44, 695–701 (2015). https://doi.org/10.1007/s00256-014-2029-9
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DOI: https://doi.org/10.1007/s00256-014-2029-9