It was reported that the x ray shows that the head was dislocated.The revision surgery will be performed on (b)(6) 2021, and the stem will be replaced.The surgeon wants the cup to be left.The surgeon commented that the cause of dislocation might be that due to the corrosion at the neck, and excessive stress caused by impingement with cup margins also made the head dislocated.No further information has been made available.
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Product complaint # (b)(4).Investigation summary : no device associated with this report was received for examination.The information received will be retained for potential series investigations if triggered by trend analysis, post market surveillance, or other events within the quality system.Depuy considers the investigation closed.Should additional information be received, the information will be reviewed and the investigation will be re-opened as necessary.Device history lot : the product investigation found no evidence suspecting an error in the manufacturing or material that would be a contributing factor in the reported allegation(s).A manufacturing records evaluation (mre) was not performed.
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