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The purpose of this investigation is to evaluate the reported issue of loosening of pedicle screws post-op.An investigation into the dhr of the part cannot be completed at this time as the rep could not provide the lot numbers of the broken parts.Functional/visual inspection could not be completed as the parts were not returned.However, the sales rep was contacted by the complaints coordinator, and the rep noted that a revision case was required due to the screws loosening, which was completed successfully.The rep also noted that the patient had poor bone quality.The calculated observed risk level matches the expected risk level; therefore, the overall risk of the system has been maintained and there is no further investigation required.
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