SAFE-RFX Cannulas

SAFE-RFX is the version of the radiofrequency cannulas that ships with the X-Grid™ matrix in the same kit.

The double conical heat-sealed insulation and the laser-cut finish are the same as SAFE-RF. The shaft is AISI 304 steel. What changes is the targeting stage: with the mask placed over the field, the coordinate read on the fluoroscopy is the same one found on the skin.

In the study published in Acta Ortopédica Brasileira, researchers at the Institute of Orthopaedics and Traumatology of HC-FMUSP compared genicular nerve block performed with and without the localising mask, on a model, with 23 orthopaedic surgeons. The number of radioscopies needed fell from 12.1 ± 2.5 without the mask to 5.0 ± 1.8 with it, a statistically significant difference at all three points studied.

Leal DP, Merino MGL, Atieh MM, Guedes VHC, Pécora JR, Helito CP. The use of adhesive radiopaque grids in genicular nerve block by radioscopy. Acta Ortop Bras. 2023;31(3):e266060. Available at https://doi.org/10.1590/1413-785220233103e266060

The Spinal Interventional Society holds that there is no safe dose of radiation, and recommends the ALARA principle (as low as reasonably achievable). Every available protective measure should be adopted in interventional pain procedures.