Rib Fracture Analgesia Using Cryoanalgesia

The cryoneurolysis device will be triggered using 2 cycles of 2-minute gas activation separated by 1-minute defrost periods. For active probes, the nitrous oxide will be deployed to the tip where a drop in temperature to -70°C will result in cryoneurolysis.

3 mL of ropivacaine 0.5% (with epinephrine) will be injected perineurally to provide the intercostal nerve block(s)

The cryoneurolysis device will be triggered using 2 cycles of 2-minute gas activation separated by 1-minute defrost periods. For the sham probes, the nitrous oxide will be vented prior to reaching the probe shaft, resulting in a lack of perineural temperature change.

3 mL of normal saline will be injected perineurally to provide placebo intercostal nerve blocks