Context: the device in question is an intramedullary balloon catheter (ibc) that is part of the illuminoss photodynamic bone stabilization system (pbss).It is a formed-in-place intramedullary implant used to stabilize bone fractures in much the same way as an intramedullary nail (imn) does.Details of the ibc are as follows: the ibc consists of a balloon attached to a catheter and y-body assembly that allows the user to infuse monomer material into the balloon to fill it once it is in the intramedullary canal and placed across the fracture site.The catheter and y-body also allow access for the light fiber into the balloon which provides the light necessary to harden the monomer into a polymer.The balloon, once hardened, is now able to stabilize the fracture during the healing process.Specific differences between the ibc and imn is that the ibc is a formed in place implant.The nail is not.The ibc, unlike the imn, must have cortical contact along its length.Because of this cortical contact, cross-locking screws are not required, which is also not the same as an imn as an imn requires these screws for stability.For humeral fracture treatments, it is recommended that the diameter of the created implant be a minimum of 13mm in order to provide optimal strength if used on its own.This is stated in the surgical technique guide (p/n 900510), it states that if the 13mm diameter is not achieved it is recommended to supplement the balloon implant with an fda cleared plate and screws.Investigation results: the root cause analysis tool used to determine potential root causes of this implant break was a rule in / rule out analysis which involved evaluation of available information (i.E.Complaint description, device history record reviews, ifu review, and review of x-rays).As each potential root cause for a failure of this type was identified, it was either ruled in or ruled out.At the completion of the analysis, all device related potential causes were considered ruled out based on the available information and physical evidence.Conclusion: after the analysis described above was completed, there were no device related potential causes identified based on the available information.
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