It was reported that during a navio assisted tka surgery, while removing the bone pins after all procedures, it was found that one navio bone pin 4.0mm x 127mm broke off and other one was deformed.No pieces were left inside the patient (confirmed using c-arm).The procedure was completed with a non-significant delay.Patient was not harmed beyond the problem reported.
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H3, h6: the navio bone pin, pn pfsd01008, lot# 21etu0001, use in treatment, was returned for evaluation.A relationship between the reported event and the device was established.The reported problem was visually confirmed.One of the pin broke 1/4 from the beginning of the threading and the other one is bent all the threading part.The most likely cause of this event is product mishandling; external forces and/or pressure applied to the pin.Care and caution should be exercised during the surgical site setup, surgery and tear down to protect the device from an unforeseen force, such as falling onto a hard surface or damage.Refer to the navio surgical system user¿s manual for proper handling.A review of manufacturing and service records indicate the device met all specifications upon release into distribution.A complaint history review for similar reported/confirmed complaints has identified prior events.A historical escalation event review was completed.A review of prior escalation actions found no actions applicable to the scope of this case.The failure mode and associated risk have been anticipated within the risk file and the documented risk level is still adequate.Although no further containment or corrective action is recommended or required at this time, all complaints are monitored and trended through post market surveillance activities.
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