SMITH & NEPHEW, INC. LGN POROUS CR FEM SZ 5R; PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED
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Catalog Number 71423255 |
Device Problem
Unintended Movement (3026)
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Patient Problems
Bone Fracture(s) (1870); Pain (1994); Swelling (2091); Post Operative Wound Infection (2446)
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Event Date 11/09/2015 |
Event Type
Injury
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Event Description
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It was reported the patient presented with a preoperative diagnosis of a failed right total knee arthroplasty.The patient had issues in recovery including potential wound infection, arthrofibrosis requiring manipulation, and on-going knee discomfort with pain and swelling.Bone scan was positive at the distal femur, proximal tibia, potentially consistent with aseptic loosening.The patient underwent a revision arthroplasty of femoral and tibial components, and open reduction and internal fixation of a fracture of the lateral femoral condyle.Procedure included preservation of the existing patellar poly.
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Manufacturer Narrative
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The associated complaint devices were not returned for evaluation.Our clinical investigation noted that there was no clinically relevant information was provided to perform a medical assessment, therefore the root cause cannot be determined.The future impact to the patient beyond the revision cannot be determined.No further clinical/medical assessment is warranted at this time.A review of complaint history on the listed parts revealed no additional complaints for this failure mode with the same batch number.A review of the manufacturing records for the listed batch did not reveal any deviation from the standard manufacturing processes.Products were sterilized according to sterilization release documentation from quality control.Without the return of the actual product involved, our investigation of this report is inconclusive.If the device or new information is received in the future, this complaint can be re-opened.No further actions are being taken at this time.We consider this investigation closed.
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Manufacturer Narrative
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The associated complaint devices were not returned for evaluation.Our clinical investigation conducted during this investigation concluded that the reported infection sustained nine days after implantation was most likely due to a post-surgical complication.Details regarding the patient¿s weight-bearing status, bone quality, and fall/trauma history have not been provided.Based on the limited information provided and without the return of the device for evaluation the root cause of the reported component loosening and pain cannot be determined however, the patient¿s medical history is significant for multiple comorbidities which cannot be ruled out as possible contributing factors.The patient impact beyond the revision itself cannot be concluded.No further medical assessment is possible at this time based on the information provided.Our investigation including a review of complaint history on the listed parts revealed no additional complaints for this failure mode with the same batch number.A review of the manufacturing records for the listed batches did not reveal any deviation from the standard manufacturing processes.Products were sterilized according to sterilization release documentation from quality control.Without the return of the actual product involved, our investigation of this report is inconclusive.If the device or new information is received in the future, this complaint can be re-opened.No further actions are being taken at this time.
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