UltrasouNd-guided Percutaneous Intercostal Nerve Cryoneurolysis for Analgesia Following Traumatic Rib Fracture

Cryoneurolysis will be performed on the intercostal nerve associated with each fractured rib using a handheld cryoneurolysis machine (Iovera). Cryoneurolysis will consist of two 103 second cycles (includes cooling, ice ball formation and warming time) per rib fracture level. Ultrasound guidance will be used to identify appropriate rib fracture levels and to target the device tip in real time. All participants will also receive standard multimodal analgesia and ESP catheter infusion.

Participants in the control group will receive sham CN (i.e., application of device without skin puncture or activation of unit) to maintain participant blinding. All participants will also receive standard multimodal analgesia and ESP catheter infusion.