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SMITH & NEPHEW, INC. JOURN ART INS BCS STD 7-8 LT 9; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL
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| Model Number |
74023281 |
| Medical Device Problem Codes |
Fracture (1260); Naturally Worn (2988)
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| Health Effect - Clinical Codes |
Foreign Body Reaction (1868); Failure of Implant (1924); Joint Dislocation (2374)
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| Date of Event |
10/28/2021
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Type of Reportable Event
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Serious Injury
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Additional Manufacturer Narrative
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H10: internal reference number: (b)(4).
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Event or Problem Description
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It was reported that after a total knee arthroplasty on the left knee using journey system was performed on (b)(6) 2009 due to arthritis the patient started to develop instability.The patient was admitted to the emergency room with a fixed dislocation of the left knee that required closed reduction.Afterward, the patient had a revision surgery on (b)(6) 2021.During the revision surgery, the insert was explanted and noticed fracture just at the midpoint of the device.A new insert was implanted, and the rest of the journey system remain implanted.After the procedure, the patient was transferred to the recovery room in stable condition.
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Additional Manufacturer Narrative
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H3, h6: the reported event was analyzed.Although the involvement of all the devices was reported, the relationship with the investigated failure was directly associated to the journey articular insert.Therefore, no investigation is deemed for the other devices.The device was not returned for evaluation; therefore, a device analysis could not be performed.The clinical/medical investigation concluded that, based on the documentation provided, the patient comorbidities and ¿developing instability in both of his knees over the last couple of years¿ along with the approximate 19-month-delay to revision after a concerning magnetic resonance imaging for insert post and development of component loosening most likely contributed to the severity of the patient¿s symptoms, dislocation/closed reduction and bilateral insert revisions.Although the revision operation note documentation indicated the ¿magnetic resonance imaging showed fractured post ~ 1 year ago, but (patient) chose not to do anything at that time¿, the right knee magnetic resonance imaging report (on (b)(6) 2020) shows possible polymeric wear with the appearance of a blunted insert without evidence of a displaced fragment or frank post fracture, but ¿developing loosening is a concern¿.However, the revision findings revealed that ¿the post was broken just at the midpoint¿ bilaterally, which correlates with the pre- and post-op diagnosis of ¿bilateral knee polyethylene post fractures¿.Joint laxity and third body-wear could also be potential contributing factors as the final pathology diagnosis (polyethylene particulate debris) confirms wear of the insert.The patient impact included the reported symptoms, imaging and intraoperative findings along with the reported interventions.A transient post-op restorative rehab phase would be anticipated.Further impact could not be determined.A review of the production order did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history revealed a similar event 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 instructions for use documents for knee systems revealed in warnings and precautions that the implant can break or become damaged as a result of strenuous activity or trauma.The patient should be warned that the device does not replace normal healthy bone.Additionally, the possible adverse effects section revealed that wear of the polyethylene articulating surfaces of knee replacement components has been reported following total knee replacement.Higher rates of wear may be initiated by particles of cement, metal, or other debris which can cause abrasion of the articulating surfaces.Higher rates of wear may shorten the useful life of the prosthesis, and lead to early revision surgery to replace the worn prosthetic components.A review of the risk management file revealed this failure mode was previously identified.Further actions concluded that there is a higher than expected risk of revision surgery.However, it is critical to note that this does not exceed the risk of exposing patients to a revision surgery that is more invasive than required by unnecessarily removing a well fixed first generation journey bcs femoral component during revision surgery.A voluntary market removal was performed for the journey¿ bcs femoral components and an advisory notice was issued for journey¿ bcs tibial inserts.It was recommended to undertake a field safety corrective action in each regulatory jurisdiction where the device was sold to inform surgeons of the higher expected risk of revision, audit accounts where the devices were supplied before the phase out of the product to ensure that no further inventory remains available for implantation at those sites and ensure clear communication that the device should only be used for polyethylene exchange revision of journey bcs total knee constructs where the femoral component and tibial baseplate are well fixed.However, according to the clinical/medical investigation, the femoral and tibial components were retained, thus deemed well-fixed and appropriate for the first generation insert revision; therefore, no causal relationship to the field action can be supported.According with the product material specification, the quality and manufacture of ultra-high-molecular-weight polyethylene shall be controlled.This material is used in the manufacture of surgical implants and instruments, and can be considered a surgical grade of ultra-high-molecular-weight polyethylene.At this time, we have no reason to suspect that the product failed to meet any specifications at the time of manufacture.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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Additional Manufacturer Narrative
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H3, h6: the reported event was analyzed.Although the involvement of all the devices was reported, the relationship with the investigated failure was directly associated to the journey articular insert.Therefore, no investigation is deemed for the other devices.The device was not returned for evaluation; therefore, a device analysis could not be performed.The clinical/medical investigation concluded that, based on the documentation provided, the patient comorbidities and ¿developing instability in both of his knees over the last couple of years¿ along with the approximate 19-month-delay to revision after a concerning magnetic resonance imaging for insert post and development of component loosening most likely contributed to the severity of the patient¿s symptoms, dislocation/closed reduction and bilateral insert revisions.Joint laxity and third body-wear could also be potential contributing factors as the final pathology diagnosis (polyethylene particulate debris) confirms wear of the insert.The patient impact included the reported symptoms, imaging and intra-operative findings along with the reported interventions.A transient post-operative restorative rehabilitation phase would be anticipated.Further impact could not be determined.No further medical assessment can be rendered at this time.A review of the production order did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history revealed a similar event 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 instructions for use documents for knee systems revealed in warnings and precautions that the implant can break or become damaged as a result of strenuous activity or trauma.Additionally, the possible adverse effects section revealed that wear of the polyethylene articulating surfaces of knee replacement components has been reported following total knee replacement.Higher rates of wear may be initiated by particles of cement, metal, or other debris which can cause abrasion of the articulating surfaces.Higher rates of wear may shorten the useful life of the prosthesis, and lead to early revision surgery to replace the worn prosthetic components.A review of the risk management file revealed this failure mode was previously identified.Further actions concluded that there is a higher than expected risk of revision surgery.However, it is critical to note that this does not exceed the risk of exposing patients to a revision surgery that is more invasive than required by unnecessarily removing a well fixed first generation journey bcs femoral component during revision surgery.A voluntary market removal was performed for the journe bcs femoral components and an advisory notice was issued for journey bcs tibial inserts.It was recommended to undertake a field safety corrective action in each regulatory jurisdiction where the device was sold to inform surgeons of the higher expected risk of revision, audit accounts where the devices were supplied before the phase out of the product to ensure that no further inventory remains available for implantation at those sites and ensure clear communication that the device should only be used for polyethylene exchange revision of journey bcs total knee constructs where the femoral component and tibial baseplate are well fixed.However, according to the clinical/medical investigation, the femoral and tibial components were retained, thus deemed well-fixed and appropriate for the first generation insert revision; therefore, no causal relationship to the field action can be supported.According with the product material specification, the quality and manufacture of polyethylene shall be controlled.This material is used in the manufacture of surgical implants and instruments, and can be considered a surgical grade of polyethylene.At this time, we have no reason to suspect that the product failed to meet any specifications at the time of manufacture.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.Corrected data b7, h6 (health effect - clinical code and medical device problem code).
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