(b)(4).Concomitant medical products: 00801803205 femoral head sterile product do not resterilize 12/14 taper lot # 37220400 00875705800 shell with uni-hole porous 58 mm o.D.Size ll for use with ll liners lot # 62355652 00875700001 dome hole plug single pack lot # 63131207 00786401520 femoral stem press-fit collarless 12/14 neck taper standard body extended neck offset size 15 160 mm stem length cementless lot # 61967829.Reported event was confirmed by review of the provided op notes.Device history record (dhr was reviewed and no discrepancies relevant to the reported event were found.Review of complaint history determined that no further action is required as no trends were identified.According to the operative notes the constrained liner was put in with the 2 raised poly pegs at the based on the previous experience, the surgeon reduced the head into the acetabulum and then for several hours, they tried to place the locking ring around the neck.It was not easy with the exposure the surgeon had.After numerous attempts, the locking ring was finally positioned acceptability and impacted solidly in place.There was a blood loss of 1000 ml.Root cause was unable to be determined.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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It was reported that patient underwent right total hip arthroplasty due to unknown reasons.During surgery, it was reported that it took several hours to place the locking ring around the neck and it was really difficult with the exposure the surgeon had.After numerous attempts, the surgeon was able to position the locking ring acceptably and impacted solidly in place.
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