SMITH & NEPHEW, INC. GNS II RESURF PAT 26MM; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAIN, CEMENT, POLY/MET/POL
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Model Number 71420580 |
Device Problem
Adverse Event Without Identified Device or Use Problem (2993)
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Patient Problem
Arthralgia (2355)
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Event Date 11/22/2022 |
Event Type
Injury
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Manufacturer Narrative
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Smith & nephew is submitting this report pursuant to the provisions of 21 c.F.R.Part 803.This report may be based upon information which smith & nephew has not been able to investigate or verify prior to the required reporting date.This report does not reflect a conclusion by fda, smith & nephew, or its employees, that the report constitutes an admission that the device, smith & nephew or its employees caused or contributed to the potential event described in this report.(b)(4).
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Event Description
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It was reported that, after a tka on (b)(6) 2022, the patient experienced knee pain since their original surgery.A revision surgery was performed on (b)(6) 2022 to revise the gns ii resurf pat 26mm.The current health status of patient is unknown.All available information has been disclosed.If additional information should become available, a supplemental report will be submitted accordingly.
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Manufacturer Narrative
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H3, h6: the device was not returned for evaluation; therefore, a device analysis could not be performed.The photographs were reviewed, and revealed that the device appears to be deformed.However, with the information available, it can not be confirmed that this deformation was related to the reported pain.The clinical/medical investigation concluded that, a single, poor-quality photo was provided of an explanted patellar component which appears to show some peripheral deformation; however, does not provide insight into the root cause of the event.Without the requested clinical documentation, possible contributing clinical factors could not be definitively concluded.The patient impact beyond the reported pain since their original surgery and revision of the patellar component could not be determined.A review of the production order did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history for the part number over the past 12 months and for the batch number based on historical data of the device did not reveal similar events for the listed device.A review of the instructions for use documents for knee systems revealed that pain or numbness of the affected limb have been identified in possible adverse effects as a result of temporary or permanent nerve damage.A review of the risk management file revealed this failure mode was previously identified.The anticipated risk level is still adequate.A historical review concluded that there are no prior actions related to this product and event.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.With the results of this investigation the root cause of this event could not be determined.Factors that could contribute to the reported event include traumatic injury, joint tightness, patient condition or postoperative care.Based on this investigation, the need for corrective action is not indicated.Should the device or additional information be received, the complaint will be reopened.No further investigation is warranted for this complaint; however, we will continue to monitor for future complaints and investigate as necessary.We consider this investigation closed.
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