Surgeon reported that he was having an issue with a patient he used cryo device in (b)(6) 2018, for a surgical procedure for broken ribs where he had to plate the ribs back together.The surgeon resected the bottom lip of the rib, exposed the neurovascular bundle and froze levels 7-10 nerve externally, at least 6cm away from the transverse process laterally under each rib for pain management.Two months post-procedure patient has a bulge posterolateral, lower flank, consistent with lower thoracoabdominal wall denervation.Patient is undergoing physiotherapy.This event is a procedure related complication.Atricure does not recommend ablation below the 9th intercostal space per cryoanalgesia procedural guide (b)(4).There was no reported device malfunction.
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