The patient underwent a two level (l3-l5) lumbar interbody fusion surgery with placement of two elite expandable devices in (b)(6) of 2019.Approximately three months post-surgery, the patient reportedly was bending over and heard a "pop or crack" with immediate onset of new le symptoms.The patient returned for medical attention, was given an epidural steroid injection, and imaging confirmed that one of the implants had collapsed and that its bolt was not in the expanded position.The second implant appeared as expected with no concerns noted.In (b)(6) of 2019 a revision surgery was performed using the same plif approach and the bolt was found to be fractured and was removed.Given the ventral positioning of the implant in the tight disc space and no obvious evidence of gross instability, the surgeon made the decision to leave the implant in the disc space.
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