SMITH & NEPHEW, INC. GNS II BICONVEX PAT 23MM; PROSTHESIS, KNEE, FEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER
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Model Number 71420566 |
Device Problems
Use of Device Problem (1670); Defective Device (2588)
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Patient Problems
Injury (2348); Joint Dislocation (2374)
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Event Date 05/20/2020 |
Event Type
Injury
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Event Description
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It was reported that after primary knee surgery, the patient experienced pain and dislocation.Revision surgery was performed.The surgeon indicated that the devices were not defective but there was a problem when the bones were shaved.It was too shallow to implant it.A backup device was used as replacement.Patient outcome 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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It was reported that after primary knee surgery, the patient experienced pain and dislocation.Revision surgery was performed.The affected genesis ii biconvex patellar component, used in treatment, was not returned for evaluation.Therefore a product analysis could not be performed.Our investigation including a review of manufacturing records did not reveal any deviation from the standard manufacturing processes.A review of the complaint history for the listed part revealed no prior complaints for the listed failure mode with the same batch number.There is no information that would suggest the device failed to meet specifications.A relationship, if any, between the device and the reported incident could not be corroborated.Based on this investigation, the need for corrective action is not indicated.The surgeon indicated that the devices were not defective but there was a problem when the bone was shaved.No medical documents were received for investigation.Thus no thorough investigation could not be performed.Some potential causes could include but are not limited to limited range of motion, surgical technique or patient anatomy.Without the return of the actual product involved and no patient medical records available, our investigation of this report is inconclusive.No further investigation is warranted for this complaint; however we will continue to monitor for future complaints and investigate as necessary.Should the device or additional information be received, the complaint will be reopened.
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