MAUDE Adverse Event Report: STRYKER ORTHOPAEDICS-MAHWAH UNKNOWN ACETABULAR SHELL; PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED

Catalog Number UNK_JR

Device Problem Loss of Osseointegration (2408)

Patient Problems Bone Fracture(s) (1870); Inadequate Osseointegration (2646)

Event Date 05/17/2023

Event Type  Injury  

Event Description

A patient specific implant request form was received for the patient's left hip.Noted on the form: "left acetabular fracture.There is a prior pelvic apc (anteroposterior compression) with a loose cemented cup and a fractured superior pubic ramus junction.Need to plan to remove the hardware and reconstruct.Plan to attempt a 'hemi-pelvis' reconstruction given limited ilium bone remaining.Would like ability to anchor onto the ischium, possibly the pubis.Plan to leave citation stem.Plan to revise apc and cemented cup.Remove plate/ screws." planned date of surgery is (b)(6) 2023.

Manufacturer Narrative

An event regarding periprosthetic fracture and loosening involving an unknown 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 remains implanted.Clinician review: no medical records were received for review with a clinical consultant.Product history review: could not be performed as the device lot details were not provided.Complaint history review: could not be performed as the device lot details were not provided.Conclusions: it was reported that the patient is planned to be revised due to periprosthetic fracture of the acetabulum and shell loosening.The exact cause of the event could not be determined because insufficient information was provided.Further information such as return of the device, pathology reports, pre- and post-operative x-rays and the revision operative report as well as patient history and follow-up notes are needed to complete the investigation for determining root cause.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 : not returned.

• Brand Name: UNKNOWN ACETABULAR SHELL
• 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: brad curtis ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 17076196
• MDR Text Key: 316751204
• Report Number: 0002249697-2023-00635
• Device Sequence Number: 1
• Product Code: LPH
• Combination Product (y/n): N
• Reporter Country Code: US
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Health Professional
• Reporter Occupation: Physician
• Type of Report: Initial
• Report Date: 06/06/2023

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 Catalogue Number: UNK_JR
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 05/17/2023
• Initial Date FDA Received: 06/06/2023
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• 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): Other
• Patient Age: 64 YR
• Patient Sex: Female
• Patient Weight: 90 KG