MAUDE Adverse Event Report: ARTHREX, INC. 30MM CENTRAL SCREW, MODULAR; SHOULDR PROSTH, REVERSE CONFIG

Model Number	30MM CENTRAL SCREW, MODULAR
Medical Device Problem Code	Break (1069)
Health Effect - Clinical Code	Failure of Implant (1924)
Date of Event	03/18/2024
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The contribution of the device to the reported event could not be determined as the device was not returned for evaluation.The root cause of the event could not be determined from the information available and without device evaluation.If the device becomes available for evaluation, a follow-up report will be submitted.
Event or Problem Description
On 3/19/2024, it was reported by a sales representative via email that an ar-9502-36arca univers revers ca humeral head adapter 36 came loose from the suturecup and could not be separated.The trial ca adapter was placed in the suturecup and the trial ca head was placed.An x-ray was taken, and it was determined that the ca head was the appropriate size.The trials were removed.The stem/cup impactor handle was threaded into the ca adapter.The tab of the ca adapter was aligned with the lateral slot of the suturecup.The implant was impacted into the suturecup.The ca head was impacted with the glenosphere impactor making sure the hood of the head was lateral.The ca adapter came loose from suturecup.The surgeon asked for a new ca adapter and a ca head as they could not be separated.A second ar-9502-36arca univers revers ca humeral head adapter was placed on the impactor handle and was impacted into the suturecup.The glenosphere impactor was used as well to seat the adapter into the suturecup but with little effort, the ca adapter could be pulled from the suturecup.The surgeon was able to separate the first set of implants and tried again to impact the ca adapter into the suturecup, but again it could be easily removed from the suturecup.The surgeon made sure the tab was aligned with the lateral slot of the suturecup.A 36+6 spacer was inserted but could not get either adapter to seat into the spacer.Both could be easily pulled from the suturecup.The surgeon did not want to attempt the removal of the cup and or stem; due to concerns about fracturing the patient¿s humerus.It was decided to stop the procedure and close the patient.The patient was referred to another surgeon specializing in revision surgeries.This was discovered during a conversion surgery from rtsa to ca humeral head.The sales representative reports the glenosphere, baseplate, and central screw were removed.One of the baseplate screws broke prior to removal.The poly liner was also removed from the suturecup.Additional information received on 3/27/2024: the patient underwent the original procedure on (b)(6) 2024.A screw broke post-operative and because of movement, it caused the baseplate and the central screw to become loose.Both surgeries were performed by the same surgeon at the same facility.
Additional Manufacturer Narrative
Additional information: g3, h3, h6.Based on the information provided which may include the device (if available and returned), pictures, videos, event description, and any additional information from the field, arthrex was able to conclude a most likely cause.The most likely cause for the reported failure can be attributed to a patient-specific event.

• Brand Name: 30MM CENTRAL SCREW, MODULAR
• Common Device Name: SHOULDR PROSTH, REVERSE CONFIG
• Manufacturer (Section D): ARTHREX, INC.; 1370 creekside boulevard; naples FL 34108 1945
• Manufacturer (Section G): ARTHREX, INC.; 1370 creekside boulevard; naples FL 34108 1945
• Manufacturer Contact: jared engle ; 8009337001
• MDR Report Key: 19062834
• Report Number: 1220246-2024-01878
• Device Sequence Number: 12436269
• Product Code: PHX
• UDI-Device Identifier: 00888867296572
• UDI-Public: 00888867296572
• Combination Product (Y/N): N
• Initial Reporter State: CO
• Initial Reporter Country: US
• PMA/510(K) Number: K173900
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• Device Explanted Year: 2024
• Reporter Type: Manufacturer
• Report Source: Distributor
• Initial Reporter Occupation: Administrator/Supervisor
• Type of Report: Initial,Followup
• Report Date (Section B): 05/30/2025

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: 12/31/2023
• Device Model Number: 30MM CENTRAL SCREW, MODULAR
• Device Catalogue Number: AR-9561-30S
• Device Lot Number: 5688
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/19/2024
• Supplement Date Received by Manufacturer: 05/13/2025
• Initial Report FDA Received Date: 04/08/2024
• Supplement Report FDA Received Date: 05/30/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 01/01/2019
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other
• Patient Sex: Unknown