Based on the information provided to the company, tapping was not performed prior to lag screw insertion into the bone.It was indicated that the case involved a hard bone.As listed in the system ifu and surgical technique, tapping should be performed before lag screw threading into the bone, using the provided bone tap.It is noted that the operation was satisfactorily completed, and that having double titanium shell is not expected to adversely affect the device performance or the clinical outcome.Based on recent information from the surgeon, the patient is feeling well.Examination of the involved lag screw indicated that the entire titanium shell was removed from the threaded portion at lag screw' distal end.No production fault was detected on visual and dimensional examination of the lag screw.Examination of the production records of the involved device did not reveal a deviation that may have contributed to the reported case.This report is submitted following an fda inspection at the manufacturer facility.
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During implantation of a piccolo composite pf nail and screws, the surgeon decided to replace the lag screw which was just introduced with a longer one.Upon removing the lag screw from the bone, the screw' titanium shell remained in the bone.Another lag screw was used, threaded into the remaining titanium shell.The operation was satisfactorily completed.
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