The complainant reported that the patient had "crazy poor" bone quality that led to the screws being loose and the subsequent need for a removal and revision surgery more than nine months after the initial procedure.The surgeon removed all tilock hardware and replaced it with a competitor's fenestrated screw system in order to inject pmma (bone cement) to help stabilize the new pedicle screws.It is not known if there are any factors (smoking, alcohol use, medications, etc.) that would have contributed to the patient's poor bone quality.
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