| Model Number |
N/A |
| Medical Device Problem Codes |
Insufficient Device Problem Information (3190); Loosening of Implant Not Related to Bone-Ingrowth (4002)
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| Health Effect - Clinical Codes |
Extraskeletal ossification (1428); Osteolysis (2377); Inadequate Osseointegration (2646); Insufficient Information (4580)
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| Date of Event |
07/07/2021
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Type of Reportable Event
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Malfunction
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Additional Manufacturer Narrative
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Medical products: freedom all poly cup 62mm; catalog#: 11-107128; lot#: 765490; constrained head 12/14 taper 36 mm diameter -6 mm neck length for use with freedom constrained liners; catalog#: 802403601; lot#: 3036377.Therapy date: (b)(6) 2021.The manufacturer received x-rays and other source documents for review.The manufacturer did not receive the device for investigation.Where lot numbers were received for the devices, the device history records were reviewed and found to be conforming.A cause for this specific event cannot be ascertained from the information provided.As soon as supplemental information becomes available an updated report will be submitted.Zimmer biomet¿s reference number of this file is (b)(4).
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Event or Problem Description
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Patient was implanted on the left side and underwent a revision surgery due to unknown reasons.During revision, the stem bolt fractured while extracting.
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Event or Problem Description
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No event update.Investigation results are now available.
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Additional Manufacturer Narrative
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Review of event description: the patient was implanted with an avenir stem in the left hip on an unknown date and underwent revision on (b)(6) 2021 due to unknown reasons.Review of received data: due diligence: no further "due diligence" required as all required information to support the conclusion is available or was already requested.X-rays: a total of two radiographs of the left hip were obtained, an undated ap image and a lateral image dated (b)(6) 2021.The following radiographic evaluation was performed by a radiologist and showed an abnormal vertical orientation of the acetabular cup.Lucency surrounding the cup suggests loosening but the fixation screw appears intact.There is heterotopic ossification laterally.Suspected proximal femoral osteolysis.Bone quality is osteopenic.Images: in total 5 images related to the intraoperative complication during stem removal have been received.However, these are not relevant to this complaint.Product evaluation: the avenir stem was discarded; therefore, a product evaluation could not be performed.Review of product documentation: device purpose: this device is intended for treatment.Product compatibility: the compatibility check could not be performed as not all involved products are known.Dhr review: review of the device history records identified no deviations or anomalies during manufacturing.Conclusion: the patient was implanted with an avenir stem in the left hip on an unknown date and underwent revision on (b)(6) 2021 due to unknown reasons.Evaluation of the radiographs showed an abnormal vertical orientation of the acetabular cup, potential loosening, heterotopic ossification and suspected proximal femoral osteolysis.The quality records show that all specified characteristics have met the specifications valid at the time of production.Therefore, the investigation did not identify a nonconformance or a complaint out of box (coob).Based on the examination, it can be assumed that the cup position and osteolysis at the proximal femur led to the revision, although the reason for the cup position and osteolysis is unknown.The need for corrective measures is not indicated and zimmer switzerland manufacturing gmbh considers this case as closed.Zimmer biomet's reference number of this file is (b)(4).
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Additional Manufacturer Narrative
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The avenir stem reported in section d4 on the previous medwatch was not the product removed from the patient during the revision surgery.It was being implanted during this revision surgery and there are no adverse events reported for this device.A medwatch 0001822565-2021-03316-1 has been submitted to accurately report the involved devices in this event (zimmer inc reference is (b)(4)) zimmer switzerland manufacturing gmbh considers this case as invalidated.Please delete from your records.
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Event or Problem Description
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This follow-up is being submitted because the device reported in this medwatch was not revised but implanted during the revision surgery.There is no adverse event reported after the implantation of this device therefore this complaint will be invalidated please delete it from your records.
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Search Alerts/Recalls
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