(b)(4).Concomitant medical products: item# unknown, unknown head, lot# unknown; item# unknown, unknown cup, lot# unknown; item# unknown, unknown liner, lot# unknown.Customer has indicated that the product is in process of being returned to zimmer biomet for investigation.Once the investigation has been completed, a follow-up mdr will be submitted.
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It was reported patient underwent total hip arthroplasty on an unknown date.Subsequently, patient was revised due to periprosthetic fracture.During revision, surgeon was replacing stem.Surgeon took stem out and prepared to use revision stem.Surgeon reamed, but implant just fell in.Surgeon opened next size and it fit perfectly.Attempts were made to obtain additional information; however, none was available.
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