MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH PRIMARY TRITANIUM HEMI CLUSTER HOLE CUP 58MM; PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED

Catalog Number	502-03-58F
Medical Device Problem Code	Malposition of Device (2616)
Health Effect - Clinical Code	Injury (2348)
Date of Event	01/07/2019
Type of Reportable Event	Serious Injury
Additional 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: not performed as no product was returned for evaluation.Clinician review: no medical records were received for review with a clinical consultant.Product history 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 referenced.Conclusions: the event itself could not be confirmed and exact cause of the event could not be determined because insufficient information was provided.Further information such as device return, pre and post operative x-rays, operative reports as well as patient history and follow up notes are required to complete the investigation for determining a root cause.No further investigation is required at this time.If additional information becomes available to indicate further evaluation is warranted, this record will be reopened.Device not returned.
Event or Problem Description
Reason for event: original shell was [implanted] vertically.Over time, poly wear may have caused an osteolytic response and loosened stem.Surgery: surgeon removed (accolade cemented stem, omnifit distal spacer, biolox 36 -2.5 head, 36f x3 0° liner, 58ftritanium hemispherical cluster hole shell, and 2 screws) and replaced with a new (stryker shell, liner, head) and restoration modular stem.Cup and stem well positioned - patient stable.Surgeon reported the shell had initially been implanted in a vertical position, the shell did not move but did contribute to liner wear.

• Brand Name: PRIMARY TRITANIUM HEMI CLUSTER HOLE CUP 58MM
• Common Device Name: PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED
• Manufacturer (Section D): STRYKER ORTHOPAEDICS-MAHWAH; 325 corporate drive; mahwah NJ 07430
• MDR Report Key: 8302370
• Report Number: 0002249697-2019-00437
• Device Sequence Number: 13868838
• Product Code: LPH
• UDI-Device Identifier: 07613327040159
• UDI-Public: 07613327040159
• Combination Product (Y/N): N
• Initial Reporter State: MN
• Initial Reporter Country: US
• PMA/510(K) Number: K143085
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2011
• Device Explanted Year: 2019
• Reporter Type: Manufacturer
• Report Source: health professional,other
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 02/04/2019

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
• Operator of Device: Health Professional
• Device Expiration Date: 02/28/2016
• Device Catalogue Number: 502-03-58F
• Device Lot Number: MKDPX8
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/07/2019
• Initial Report FDA Received Date: 02/04/2019
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Age: 52 YR