MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH TRIATHLON PKR INSERT X3 #3 LM/RL -8MM; PROSTHESIS, KNEE, FEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER

Catalog Number 5630-G-308

Device Problems Adverse Event Without Identified Device or Use Problem (2993); Insufficient Information (3190)

Patient Problems Pain (1994); Injury (2348)

Event Date 12/04/2012

Event Type  Injury  

Manufacturer Narrative

Review of the device history records indicate devices were manufactured and accepted into final stock with no relevant reported discrepancies.There have been no other similar events for the lot referenced.It was noted that the device is not available for evaluation.Should additional information become available, it will be provided in a supplemental report upon completion of the investigation.The information in this report was provided by stryker orthopaedics legal affairs department.No additional information is available at this time due to the ongoing litigation.Should additional information become available, the evaluation summary will be submitted in a supplemental report.The following devices were also listed in this report: triathlon pkr femur #3 lm/rl; cat# 5610-f-301; lot# fkji, triathlon pkr baseplate #3 lm/rl; cat# 5620-b-301; lot# fnnva, it cannot be determined which, if any of these devices may have caused or contributed to the patient's experience.Device not returned.

Event Description

A medical review performed as part of pi identified an "arthroscopy of the left knee" had taken place on (b)(6) 2012.Medical review stated: "early post right knee replacement, patient started to develop left knee complaints in the pkr, as reported on nov 7, 2012.There was occasional but very sharp pain in the antero-medial side of the knee with feelings of giving way.Range of motion (rom) was normal with adequate ligament stability.X-rays did report no pathological changes.Because pain symptoms did not improve, an indication for arthroscopy of the left knee was made and performed on (b)(6) 2012.A generalised grade-3 oa was observed in the pf joint and trochlea (femoral side of the pf-joint) with the pkr devices well _ixed to the bone.The acl (anterior cruciate ligament) and lateral compartment were evaluated as intact.Complaints were concluded to be caused by the pf joint problems.Conservative treatment for the left knee was initiated for a while but because of lack of clinical progress, a decision for a left knee revision was made indicated by disease progress in the pf-joint with a planned conversion of the pkr to a total knee.".

Manufacturer Narrative

An event regarding patient factors involving a triathlon insert was reported.The event was confirmed by a medial review.Method & results: product evaluation and results: material analysis, visual, functional and dimensional inspections could not be performed as the device remained implanted medical records received and evaluation: clinician review: a review of the provided medical records by a clinical consultant indicated: early post right knee replacement, patient started to develop left knee complaints in the pkr, as reported on (b)(6) 2012.There was occasional but very sharp pain in the antero-medial side of the knee with feelings of giving way.Range of motion (rom) was normal with adequate ligament stability.X-rays did report no pathological changes.Because pain symptoms did not improve, an indication for arthroscopy of the left knee was made and performed on (b)(6) 2012.A generalised grade-3 oa was observed in the pf joint and trochlea (femoral side of the pf-joint) with the pkr devices well _ixed to the bone.The acl (anterior cruciate ligament) and lateral compartment were evaluated as intact.Complaints were concluded to be caused by the pf joint problems.Conservative treatment for the left knee was initiated for a while but because of lack of clinical progress, a decision for a left knee revision was made indicated by disease progress in the pf-joint with a planned conversion of the pkr to a total knee.Conclusion of assessment: degenerative disease progress in the patellofemoral joint with only the medial compartment replaced by a triathlon pkr device has contributed to rapid development of new pain symptoms requiring conversion surgery to total knee replacement.The patient's obesity (bmi: 31) represents only a marginal secondary factor although surgical decision making for a partial knee replacement in a knee with already more than one compartment affected by osteoarthritis at time of primary arthroplasty represents an additional procedure related failure contributing factor to indicate revision surgery.Does the review identify any procedural related factors that contributed to the event? surgical decision making for a partial knee replacement in a knee with already more than one compartment affected by osteoarthritis at time of primary arthroplasty component malposition or issues with cementation cannot be excluded until proof of contrary by x-ray information.Does the review identify any patient related factors that contributed to the event? degenerative disease progress in the patellofemoral joint with only the medial compartment replaced by a triathlon pkr device.Patient obesity (bmi: 31) represents a marginal secondary factor.Does the review identify any device related factors that caused or contributed to the adverse event? no device-related factors are associated with any of the implanted devices.Product history review: a review of the device manufacturing records indicate that all devices accepted into final stock were free from discrepancies.Complaint history review: there have been one other similar event for the lot referenced.(b)(4) is for the same patient initiated based on the medical review performed as part of (b)(4) where it was identified a left knee revision was performed on (b)(6) 2014 due to patient factors.Conclusions: degenerative disease progress in the patellofemoral joint with only the medial compartment replaced by a triathlon pkr device has contributed to rapid development of new pain symptoms requiring conversion surgery to total knee replacement.No further investigation for this event is possible at this time.If devices and / or additional information become available to indicate further evaluation is warranted, this record will be reopened.

Event Description

A medical review performed as part of pi identified an "arthroscopy of the left knee" had taken place on (b)(6) 2012.Medical review stated: "early post right knee replacement, patient started to develop left knee complaints in the pkr, as reported on (b)(6) 2012.There was occasional but very sharp pain in the antero-medial side of the knee with feelings of giving way.Range of motion (rom) was normal with adequate ligament stability.X-rays did report no pathological changes.Because pain symptoms did not improve, an indication for arthroscopy of the left knee was made and performed on (b)(6) 2012.A generalised grade-3 oa was observed in the pf joint and trochlea (femoral side of the pf-joint) with the pkr devices well _ixed to the bone.The acl (anterior cruciate ligament) and lateral compartment were evaluated as intact.Complaints were concluded to be caused by the pf joint problems.Conservative treatment for the left knee was initiated for a while but because of lack of clinical progress, a decision for a left knee revision was made indicated by disease progress in the pf-joint with a planned conversion of the pkr to a total knee.".

• Brand Name: TRIATHLON PKR INSERT X3 #3 LM/RL -8MM
• Type of Device: PROSTHESIS, KNEE, FEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER
• Manufacturer (Section D): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• MDR Report Key: 9347926
• MDR Text Key: 167174853
• Report Number: 0002249697-2019-03830
• Device Sequence Number: 1
• Product Code: HRY
• UDI-Device Identifier: 07613327015928
• UDI-Public: 07613327015928
• Combination Product (y/n): N
• PMA/PMN Number: K082567
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: consumer,other
• Type of Report: Initial,Followup
• Report Date: 01/13/2020

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 11/20/2019
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Expiration Date: 07/31/2016
• Device Catalogue Number: 5630-G-308
• Device Lot Number: MKLVWX
• Was Device Available for Evaluation?: No
• Date Manufacturer Received: 12/16/2019
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Hospitalization; Required Intervention
• Patient Age: 51 YR