STRYKER ORTHOPAEDICS-MAHWAH MRH KNEE FEM XS LFT; PROSTHESIS, KNEE, FEMOROTIBIAL, CONSTRAINED, CEMENTED, METAL/POLYMER
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Model Number 6481-1-100 |
Device Problem
Adverse Event Without Identified Device or Use Problem (2993)
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Patient Problems
Bone Fracture(s) (1870); Unspecified Infection (1930); Subluxation (4525)
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Event Date 07/28/2020 |
Event Type
Injury
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Manufacturer Narrative
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The following devices were also listed in this report: mrhk tib ins 16mm xs/s s1/s2;64813216;ljc550.Mrh tibial b/plt keel sml 1;64813110;jce2h.Triathlonctrfemconeaug sz 5l;5549-a-651;kynl.Triathlon sym cone aug sz b;5549-a-120;em82.Tri press-fit stem 13mm x 100mm;5565-s-013;0083060m.Tri press-fit stem 18mm x 100mm;5565-s-018;0081933n.Mrhk fem distal blk 10mm xs;64811200;htx7a.Duracon tib wedge rt flt s1 5mm;6630-6-105;vr4ha.Mrhk tibial sleeve;64812140;ljs502.Mrh tib rot comp xs-xl;64812100;168183.Mrhk fem distal blk 10mm xs;64811200;ee72e.Duracon tib wedge lt flt s1 5mm;6630-6-125;bd74za.Mrh axle;64812120;unknown.Mrhk femoral bushing;64812110;lja144.Mrhk bumper insert 3 degrees;64812133;ljm743.Mrhk femoral bushing;64812110;ljl207.It cannot be determined which, if any of these devices may have caused or contributed to the patient's experience.Reported event: an event regarding infection and periprosthetic fracture involving a mrh femoral component was reported.The event was not confirmed.Method & results: device evaluation and results: visual , dimensional, functional and material analysis could not be performed as the device was not returned.Clinician review: no medical records were received for review with a clinical consultant.Device history review: review indicated all devices were manufactured and accepted into final stock with no reported discrepancies.Complaint history review: there have been no other similar events for the lot and sterile lot.Conclusions: it was reported that the patient's left knee was revised due to infection and periprosthetic fracture.The event could not be confirmed nor the root cause determined because the devices were not returned for evaluation and insufficient information was provided.Further information such as return of device, pre- and post-op x- rays, patient history, pathology report & follow-up notes are needed to investigate this event further.All stryker products sold as sterile are validated to a minimum sterility assurance level (sal) of 10^-6 in accordance to applicable iso standards.If additional information and/or device becomes available, this investigation will be reopened.
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Event Description
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This pi is for the (b)(6) 2020 revision.Patient underwent primary tka outside of cors scope.Had a revision tka on (b)(6) 2020 for pji.Patient had a fall plus subluxation of the patella, she also had symptoms of reinfection of the left knee.A revision was performed on (b)(6) 2020, a periprosthetic fracture b1 of the femur was observed, and maltraking of the patella.All components were exchanged except the tibial stem.
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