MAUDE Adverse Event Report: STRYKER GMBH GLENOSPHERE HOLDER/ IMPA CTOR; PROSTHESIS, SHOULDER, SEMI-CONSTRAINED, METAL/POLYMER CEMENTED

Model Number	5901-1168
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Code	Device Embedded In Tissue or Plaque (3165)
Date of Event	05/27/2020
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Device will not be returned.If additional information becomes available, it will be provided in a supplemental report.Device disposition is unknown.
Event or Problem Description
Primary procedure, left reverse total shoulder.It was reported that the threaded portion of the glenosphere impactor broke inside the implant.After assessment, the broken portion did not appear to be sharp or sitting proud.Surgeon decided to leave the broken portion in the patient.Surgery completed successfully with a delay of under 20 seconds.The rep confirmed that no further information is available.
Additional Manufacturer Narrative
Correction: refer to to d9/h3 device availability.The reported event could be confirmed.During the investigation, the device inspection revealed the following: the tip of the glenosphere holder - piston shows a clean break of the tip towards the middle of the threaded area.The surface is finely fissured and the level fracture area shows shear lips at the edge of the surface.This is specific to a ductile fracture, which is caused by an excessive force applied on the device (which is confirmed by the event description), most probably combined to the fact that the impactor was not fully engaged/ not in alignment to the glenosphere.In this regard, the operative technique was previously revised to emphasise the importance of having a good connection between the two parts.Op tech was updated with a statement that clearly describes the full engagement of glenosphere holder/impactor and glenosphere to eliminate any spaces and movement of glenosphere impactor/ holder.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.No indications of material, manufacturing or design related problems were found during the investigation.If any further information is provided, the investigation report will be updated.
Event or Problem Description
Primary procedure, left reverse total shoulder.It was reported that the threaded portion of the glenosphere impactor broke inside the implant.After assessment, the broken portion did not appear to be sharp or sitting proud.Surgeon decided to leave the broken portion in the patient.Surgery completed successfully with a delay of under 20 seconds.The rep confirmed that no further information is available.

• Brand Name: GLENOSPHERE HOLDER/ IMPA CTOR
• Common Device Name: PROSTHESIS, SHOULDER, SEMI-CONSTRAINED, METAL/POLYMER CEMENTED
• Manufacturer (Section D): STRYKER GMBH; bohnackerweg 1; postfach; selzach 2545 ; CH 2545
• MDR Report Key: 10186547
• Report Number: 0008031020-2020-01753
• Device Sequence Number: 886190
• Product Code: KWS
• UDI-Device Identifier: 07613327101027
• UDI-Public: 07613327101027
• Combination Product (Y/N): N
• Initial Reporter State: RI
• Initial Reporter Country: US
• PMA/510(K) Number: K130895
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: health professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 08/12/2020

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: 5901-1168
• Device Catalogue Number: 5901-1168
• Device Lot Number: P18N20
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 06/29/2020
• Initial Date Received by Manufacturer: 05/27/2020
• Supplement Date Received by Manufacturer: 07/16/2020
• Initial Report FDA Received Date: 06/23/2020
• Supplement Report FDA Received Date: 08/12/2020
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Age: 71 YR
• Patient Weight: 57