Based on the information provided, review of the surgical technique manual, certificates of conformance, ifu and fmeas, there is no indication of device failure and no indication that the device was out of specification.The most probable root cause is user error: using too long of an implant or not installing the implant deep enough.
Event or Problem Description
The patient had left si joint arthrodesis in (b)(6) 2018 where three implants were installed.The patient later complained of left side hip pain.The surgeon determined that the inferior positioned implant was too proud of the ilium causing pain in the surrounding tissue.The surgeon did not indicate that any of the implants were loose.In (b)(6) 2019, the surgeon performed a revision procedure where he removed the inferior positioned implant using chisels as it was solidly fixed in bone.No other preexisting implants were adjusted or removed.The patient's pain symptoms resolved following the revision procedure.