SMITH & NEPHEW, INC. GII OXIN P/S FEM LEFT SZ 6; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL
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Model Number 71421016 |
Device Problem
Adverse Event Without Identified Device or Use Problem (2993)
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Patient Problems
Bacterial Infection (1735); Purulent Discharge (1812); Unspecified Infection (1930); Pain (1994); Swelling/ Edema (4577)
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Event Date 12/24/2020 |
Event Type
Injury
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Event Description
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It was reported that, after a tka surgery had been performed, the patient presented to the hospital with a psychiatric illness.During the evaluation, the left knee and left leg were found to be swollen and painful proximally.The left knee was aspirated and found to have visible pus, so the patient was booked for revision of the first stage of the left knee arthroplasty and removal of all hardware.A revision surgery was performed to remove all prostheses and insert an antibiotic spacer.After removal of the prosthesis, pus was visualized in the tibial and femoral canals, lavage was performed, and a spacer was inserted.
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Manufacturer Narrative
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It was reported that the patient presented to the hospital a few days ago with a psychiatric illness.During the evaluation the left knee and left leg were found to be swollen and painful proximally.The left knee was aspirated and found to have visible pus, so the patient was booked for revision of the first stage of the left knee arthroplasty and removal of all hardware.Revision surgery was performed to remove all prostheses and insert an antibiotic spacer.After removal of the prosthesis, pus was visualized in the tibial and femoral canals, lavage was performed, and a spacer was inserted.The affected complaint device, used in treatment, was not returned for evaluation.Therefore a product analysis could not be performed.Our investigation including a review of the manufacturing records for the listed batch did not reveal any deviation from the standard manufacturing processes that could have caused or contributed to the reported incident.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.A review of the complaint history for the listed part revealed no prior complaints for the listed batch with the same failure mode.The device was sterilized according to sterilization release documentation from quality control.A review of risk management files and the instructions for use found that the reported failure was documented appropriately.A relationship, if any, between the device and the reported incident or adverse event could not be corroborated.A medical analysis noted that the provided unidentified/undated left tka x-ray image was reviewed; however, it does not provide insight into the root cause of the reported event.Per the report, no implantation data could be provided regarding the femoral medial and lateral plates/screws noted on x-ray proximal of the left tka components.It was communicated that the requested medical documentation was not available due to lack of consent.The provided intra-op photos of explanted components were reviewed, but also did not aid in the medical investigation.No further clinically relevant documentation was provided.Based on information provided, the revision was due to the reported purulent infection; however, the source of infection could not be concluded.The patient impact beyond the reported symptoms and subsequent first-stage revision could not be determined, although a second-stage procedure would be anticipated.No further medical assessment could be rendered at this time.Based on this investigation, the need for corrective action is not indicated.No further investigation is warranted for this complaint; however smith and nephew will continue to monitor for future complaints and investigate as necessary.Should additional information be received, the complaint will be reopened.We consider this investigation closed.
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