MAUDE Adverse Event Report: SMITH & NEPHEW, INC. REF XLPE 28 0 DEG 50-52 SZ E; PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED

Model Number	71333374
Medical Device Problem Code	Material Deformation (2976)
Health Effect - Clinical Codes	Failure of Implant (1924); Pain (1994); Joint Laxity (4526)
Date of Event	03/16/2021
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that a patient underwent to primary total hip replacement on (b)(6) 1998.Recently, the patient complained of pain, and a revision surgery was performed.The reflection liner 28mm (case-(b)(4)) and the cocr femoral head (case-(b)(4)) were revised.The explanted implants were replaced using a reflection liner 32 mm and an oxinium femoral head.During revision was found that the original liner had worn and was causing instability.The outcome of the patient is unknown.
Additional 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, reportedly, a liner was ¿found worn¿ after 23 years in-vivo accompanied by pain and instability for which the revision was performed.It was communicated that the requested documentation was not available for inclusion in the medical investigation; however, wear after 23 years in-vivo would not be an unexpected finding.Without the requested documentation, the clinical root cause of the reported events could not be definitively concluded and the patient impact beyond the symptoms and revision could not be determined.No further medical assessment could be rendered at this time.Should clinically relevant documentation/information become available, the clinical/medical task may be re-evaluated.A complaint history review found related failures for the listed device; this failure mode will be monitored for future complaints for any necessary corrective actions.A review of the risk management file and instructions for use documents revealed this failure mode was previously identified.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.Possible causes could include but not limited to traumatic injury, joint tightness, material in use or patient reaction.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: REF XLPE 28 0 DEG 50-52 SZ E
• Common Device Name: PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED
• Manufacturer (Section D): SMITH & NEPHEW, INC.; 1450 brooks rd.; memphis TN 38116
• MDR Report Key: 11648410
• Report Number: 1020279-2021-02904
• Device Sequence Number: 3367786
• Product Code: LPH
• UDI-Device Identifier: 03596010455864
• UDI-Public: 03596010455864
• Combination Product (Y/N): N
• Initial Reporter State: NM
• Initial Reporter Country: US
• PMA/510(K) Number: K002747
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 1998
• Device Explanted Year: 2021
• Reporter Type: Manufacturer
• Report Source: company representative,health
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 08/12/2021

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 Model Number: 71333374
• Device Catalogue Number: 71333374
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: Yes
• Initial Date Received by Manufacturer: 03/16/2021
• Supplement Date Received by Manufacturer: 08/11/2021
• Initial Report FDA Received Date: 04/12/2021
• Supplement Report FDA Received Date: 08/12/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization; Other; Required Intervention