SMITH & NEPHEW, INC. UNKN LEGION TOTAL KNEE PRIM FEM COMP; PROSTHESIS, KNEE, FEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER
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Catalog Number UNKN01200212 |
Device Problem
Adverse Event Without Identified Device or Use Problem (2993)
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Patient Problem
Muscular Rigidity (1968)
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Event Date 08/18/2020 |
Event Type
Injury
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Event Description
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On the literature article named "does the use of intraoperative pressure sensors for knee balancing in total knee arthroplasty improve clinical outcomes? a comparative study with a minimum two-year follow-up", it was reported that, one patient from the manual balance group underwent a revision surgery due to stiffness.The adverse event was treated with the revision of the insert, tibial component and femoral component.The outcome of the patient is unknown.
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Manufacturer Narrative
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The device, used in treatment, was not returned for evaluation and the reported event could not be confirmed.The clinical / medical investigation concluded that, the data provided was presented in the literature article named "does the use of intraoperative pressure sensors for knee balancing in total knee arthroplasty improve clinical outcomes? a comparative study with a minimum two-year follow-up".Without clinically relevant patient-specific supporting documentation, a thorough medical investigation could not be performed.The root cause and/or patient outcome beyond that which was documented in the article could not be confirmed nor concluded; therefore, no further medical assessment is warranted at this time.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 could be alignment or fit/size of device used.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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