MAUDE Adverse Event Report: ENCORE MEDICAL L.P HEAD, HUMERAL, OFFSET, 50-22; PROSTHESIS, SHOULDER, SEMI-CONSTRAINED, METAL/POLYMER CEMENTED

Model Number	520-50-122
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Joint Laxity (4526)
Date of Event	03/08/2023
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The reason for this revision surgery, the agent reported "(glenoid was loose)".The previous surgery and the surgery detailed in this event occurred 9 years and 9 months apart.This evaluation is limited in scope as the items associated with this investigation were not returned to djo surgical austin for examination.The surgery was completed as intended and without incident.If additional information regarding the reported event is submitted at a future date, this investigation will be re-evaluated.There was no information submitted with this complaint about any patient activities, accidents, or medical contraindications that may have contributed to the reported event.There were no findings during this evaluation that indicate the reported devices were defective.The surgeon performed this procedure to remedy the patient's condition.No further action is deemed necessary.A review of the device history records (dhr) show that the reported components used in the previous surgery, when released for use, met design and manufacturing requirements.There was a nonconformance associated with the concomitant part #520-00-000, neck, humeral, neutral which documents that out of 20 parts lot, 1 part was rejected and scrapped due to broken tap.All other items in the lot were met with the design, fit and function requirements.The devices were verified to have gone through an acceptable sterilization process and were within its expiration date at the time of the previous surgery.Customer complaint history of the reported devices showed no present trends or on-going issues that are needing a review.The root cause of this complaint was a revision surgery due to loosening.No information was submitted with the complaint regarding pre-existing conditions of the patient or any activities the patient was involved in that may have contributed to the event.There are multiple factors that may also contribute to an event that are outside the control of djo surgical such as poor bone density, prolonged overhead activities, inadequate soft tissue support, patient activities.
Event or Problem Description
Revision surgery due to loosening.

• Brand Name: HEAD, HUMERAL, OFFSET, 50-22
• Common Device Name: PROSTHESIS, SHOULDER, SEMI-CONSTRAINED, METAL/POLYMER CEMENTED
• Manufacturer (Section D): ENCORE MEDICAL L.P; 9800 metric blvd; austin TX 78758
• Manufacturer (Section G): ENCORE MEDICAL L.P; 9800 metric blvd; austin TX 78758
• Manufacturer Contact: james mcmahon ; 9800 metric blvd; austin, TX 78758
• MDR Report Key: 16652224
• Report Number: 1644408-2023-00374
• Device Sequence Number: 14787325
• Product Code: KWS
• UDI-Device Identifier: 00888912025065
• UDI-Public: 00888912025065
• Combination Product (Y/N): N
• Initial Reporter State: SC
• Initial Reporter Country: US
• PMA/510(K) Number: K080402
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2013
• Device Explanted Year: 2023
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 03/30/2023

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 Expiration Date: 07/31/2018
• Device Model Number: 520-50-122
• Device Catalogue Number: 520-50-122
• Device Lot Number: 936C1013
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/08/2023
• Initial Report FDA Received Date: 03/30/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 08/07/2012
• 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
• Concomitant Medical Products and Therapy/Usage Dates: 520-00-000 LOT: 878C1223
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 54 YR
• Patient Sex: Male