SMITH & NEPHEW, INC. R3 3 HOLE ACET SHELL 54MM; PROSTHESIS, HIP, SEMI-CONSTRAINED, UNCEMENTED, METAL/POLYMER
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Model Number 71335554 |
Device Problem
Biocompatibility (2886)
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Patient Problems
Pain (1994); Synovitis (2094); Metal Related Pathology (4530)
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Event Date 04/02/2021 |
Event Type
Injury
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Event Description
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It was reported that, after an r3-tha construct had been implanted on the patient¿s right hip on (b)(6) 2009, the patient experienced metallosis and pain.This adverse event was treated with a revision surgery on (b)(6) 2021.During this procedure, all components were explanted and replaced with a competitors¿ tha system.Intraoperatively, inflammatory synovial changes were noticed with a small gross macroscopic area with tissue staining.The trunnion showed mild signs of corrosion.The patient was transferred in a stable condition to the recovery room.
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Manufacturer Narrative
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Internal complaint reference case (b)(4).
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Manufacturer Narrative
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The device was not returned for evaluation and the reported event could not be confirmed.The clinical/medical investigation concluded that, the clinical information provided, of tissue staining and corrosion on the trunnion may be consistent with a reaction to metal debris.However, the source and the root cause cannot be determined with the available documentation.It cannot be concluded that the reported clinical findings are associated with the implant failure.A review of the manufacturing records did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history revealed similar events for the listed device over the previous 12 months, but no similar events for the batch based on the historical data, this failure mode will be monitored for future complaints for any necessary corrective actions.A review of the risk management file revealed this failure mode was previously identified.The anticipated risk level is still adequate.A review of the instructions for use for this device reveals that metal sensitivity reactions and/or allergic reactions to foreign materials have been reported in patients following joint replacement, which have required device removal.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.Some potential probable causes for this event could include damaged product, implant corrosion or wear.The contribution of the device to the reported event could not be corroborated.Based on this investigation, the need for corrective action is not indicated.Without the return of the actual product involved, our investigation could not proceed.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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