Based on the information provided, review of the surgical technique manual, ifu, certificates of analysis 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; improper implant size selection, using an implant that was too long or placing the implant too deep.The patient's dysmorphic sacrum may have contributed to the implant malpositioning.
Event or Problem Description
The patient had left side si joint arthrodesis in (b)(6) 2018 where three implants were placed.The patient has a dysmorphic sacrum.The patient complained of radicular pain following the initial procedure.The surgeon determined that the superior positioned implant had breached the neuroforamen.In (b)(6) 2018, the surgeon performed a revision procedure where he removed the superior positioned implant.No other preexisting implants were adjusted or removed.The patient's pain symptoms have reduced following the revision procedure.