MAUDE Adverse Event Report: SMITH & NEPHEW, INC. UNKN SYNERGY HIP STEM; PROSTHESIS, HIP, HEMI-, TRUNNION-BEARING, FEMORAL, METAL/POLYACETAL

Catalog Number UNKN01101000

Device Problem Adverse Event Without Identified Device or Use Problem (2993)

Patient Problem Osteolysis (2377)

Event Date 03/17/2021

Event Type  Injury  

Event Description

It was reported that on literature review synergy cementless stem system in the article comparative study on high cross-linked and traditional polyethylene cup liners in total hip arthroplasty.One revision surgery was performed due to osteolysis while using unkn synergy hip imp.

Manufacturer Narrative

H3, h6: the device, used in treatment, was not returned for evaluation and the reported event could not be confirmed.The clinical/medical investigation concluded that, the data presented in the aged article on, ¿synergy cementless stem system in the article comparative study on high cross-linked and traditional polyethylene cup liners in total hip arthroplasty.¿ it was reported, one revision surgery was performed due to osteolysis while using unkn synergy hip implant.However, it did not provide insight or relevance to current clinical outcomes for the product/device.Without clinically relevant patient-specific supporting documentation, a thorough medical investigation could not be performed.The images provided in the article have been interpreted within the text; therefore, no further analysis of the images is required.The root cause and/or patient outcome beyond that which was documented in the article could not be confirmed nor concluded; therefore, no further medical assessment is warranted at this time.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.Some potential probable causes for this event could include but not limited to inflammation, surgical complication, traumatic injury, adverse reaction and/or patient condition.Based on this investigation, the need for corrective action is not indicated.Without the return of the actual product involved, our investigation could not proceed.Should the device or additional information be received, the complaint will be reopened.No further investigation is warranted for this complaint; however, we will continue to monitor for future complaints and investigate as necessary.

• Brand Name: UNKN SYNERGY HIP STEM
• Type of Device: PROSTHESIS, HIP, HEMI-, TRUNNION-BEARING, FEMORAL, METAL/POLYACETAL
• Manufacturer (Section D): SMITH & NEPHEW, INC.; 1450 brooks rd.; memphis TN 38116
• MDR Report Key: 11648912
• MDR Text Key: 244885840
• Report Number: 1020279-2021-02950
• Device Sequence Number: 1
• Product Code: JDH
• Combination Product (y/n): N
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative,health
• Type of Report: Initial,Followup
• Report Date: 09/09/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 04/12/2021
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Catalogue Number: UNKN01101000
• Was Device Available for Evaluation?: Yes
• Date Manufacturer Received: 09/07/2021
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Hospitalization; Other; Required Intervention