MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH PRIMARY TRIT HEMI CLUSTER HOLE CUP 50MM; PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED

Catalog Number 502-03-50D

Device Problem Positioning Problem (3009)

Patient Problems Foreign Body Reaction (1868); Necrosis (1971); Pain (1994); Metal Related Pathology (4530)

Event Date 06/23/2022

Event Type  Injury  

Event Description

It was reported through the filing of a lawsuit that allegedly the patient was implanted with an lfit anatomic cocr v40 femoral head on her right hip on or about (b)(6) 2011 and was revised on (b)(6) 2022.It is further alleged that she suffered injuries as a result of implantation and explantation of the device at issue, device recall and excessive levels of chromium and cobalt in her blood.Update: per medical records received, patient also exhibited altr.Corrosion was observed at the stem-head interface intraoperatively.The trunnion was wiped clean and the stem was left implanted as it was well-fixed.The shell was also revised as the surgeon felt the patient "would benefit from revision to a larger cup which is more anteverted less vertical.".

Manufacturer Narrative

Reported event: an event regarding malposition involving a trident shell was reported.The event was not confirmed.Method & results: -product evaluation and results: material analysis, visual, functional and dimensional inspections could not be performed as the device was not returned.-clinician review: a review of the provided medical records by a clinical consultant indicated: "this product inquiry concerns a female patient who underwent a primary total hip arthroplasty in 2011 with an accolade stem and a cocr femoral head.Patient developed symptoms and signs consistent with trunnion/head corrosion and altr.Approximately 10 years after the initial procedure, the patient required revision.I can confirm that the patient had the primary procedure and the revision procedure since i was able to review the operation reports for each.The root cause of this event cannot be determined with certainty.The root causes of trunnion/head corrosion and altr are multifactorial including surgical technique, especially the preparation or lack thereof, of the femoral head and trunnion before insertion.No particular preparation was performed in this case.Also contributing could be the patient's activity level and bmi, as well as implant factors." -product history review: review of the device history records indicate devices were manufactured and accepted into final stock with no relevant reported discrepancies.-complaint history review: there have been no other similar events for the lot referenced.Conclusions: it was reported that the patient was revised due to elevated cobalt and chromium levels, altr, and corrosion.The shell was also revised to improve positioning and increase to a greater size for more optimal liner and head options.A review of the provided medical records by a clinical consultant indicated: "this product inquiry concerns a female patient who underwent a primary total hip arthroplasty in 2011 with an accolade stem and a cocr femoral head.Patient developed symptoms and signs consistent with trunnion/head corrosion and altr.Approximately 10 years after the initial procedure, the patient required revision.I can confirm that the patient had the primary procedure and the revision procedure since i was able to review the operation reports for each.The root cause of this event cannot be determined with certainty.The root causes of trunnion/head corrosion and altr are multifactorial including surgical technique, especially the preparation or lack thereof, of the femoral head and trunnion before insertion.No particular preparation was performed in this case.Also contributing could be the patient's activity level and bmi, as well as implant factors." 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.H3 other text : device not returned.

• Brand Name: PRIMARY TRIT HEMI CLUSTER HOLE CUP 50MM
• Type of Device: PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED
• Manufacturer (Section D): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• Manufacturer (Section G): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• Manufacturer Contact: anna ryan ; raheen business park; limerick NA ; EI NA ; 61498200
• MDR Report Key: 18500317
• MDR Text Key: 332723878
• Report Number: 0002249697-2024-00066
• Device Sequence Number: 1
• Product Code: LPH
• UDI-Device Identifier: 07613327040135
• UDI-Public: 07613327040135
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K143085
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other
• Reporter Occupation: Other
• Type of Report: Initial
• Report Date: 01/12/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Expiration Date: 06/30/2016
• Device Catalogue Number: 502-03-50D
• Device Lot Number: MKK9P2
• Was Device Available for Evaluation?: No
• Initial Date Manufacturer Received: 12/20/2023
• Initial Date FDA Received: 01/12/2024
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 06/08/2011
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention; Hospitalization
• Patient Age: 81 YR
• Patient Sex: Female