MAUDE Adverse Event Report: SMITH & NEPHEW, INC. REF LNR 28X50-52 20 DEG SZ E; PROSTHESIS, HIP, SEMI-CONSTRAINED, METAL/POLYMER, POROUS UNCEMENTED

Catalog Number	71742850
Medical Device Problem Code	Naturally Worn (2988)
Health Effect - Clinical Code	Failure of Implant (1924)
Date of Event	11/06/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that, after a thr surgery was performed on an unknown date, more than 15 years later the ref lnr 28x50-52 20 deg sz e wore out.This adverse event was treated by revision surgery on (b)(6) 2023.The patient's current health status is unknown.
Additional Manufacturer Narrative
Internal complaint number: (b)(4).
Additional Manufacturer Narrative
H3, h6: the device was not returned for evaluation; therefore, a device analysis could not be performed.The clinical/medical investigation concluded that, as of the date of this medical investigation, the requested supporting clinical documentation has not been provided.However, the liner was in situ for greater than 15 years, which is likely the clinical root cause of the reported ¿worn-out¿ liner and subsequent revision.The patient impact is the revision and postoperative convalescence period.No further clinical assessment is warranted at this time.Device batch number was not provided, thus, an evaluation of the manufacturing records could not be performed.A review of complaint history of the previous 12 months revealed a similar event for the listed device, this failure mode will be monitored for future complaints for any necessary corrective actions.A review of the instructions for use documents for total hip systems revealed in the adverse events in primary and revision surgery section that wear of the polyethylene, metal, and ceramic articulating surfaces of acetabular components may occur.Higher rates of wear may be initiated by the presence of particles of cement, metal, or other debris which can develop during or as a result of the surgical procedure and cause abrasion of the articulating surfaces.Higher rates of wear may shorten the useful life of the prosthesis and lead to earlier revision surgery to replace the worn prosthetic components.A review of the risk management file revealed this failure mode was previously identified.The anticipated risk level is still adequate.A historical review concluded that there are no prior actions related to this product and event.At this time, we have no reason to suspect that the product failed to meet any specifications at the time of manufacture.Factors that could contribute to the reported event include friction or joint tightness.Based on this investigation, the need for corrective action is not indicated.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.We consider this investigation closed.

• Brand Name: REF LNR 28X50-52 20 DEG 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
• Manufacturer (Section G): SMITH & NEPHEW, INC.; 1450 brooks rd.; memphis TN 38116
• Manufacturer Contact: holly topping ; 7000 west william cannon drive; austin, TX 78735 ; 5123913905
• MDR Report Key: 18166941
• Report Number: 1020279-2023-02270
• Device Sequence Number: 6541961
• Product Code: LPH
• UDI-Device Identifier: 03596010232267
• UDI-Public: 03596010232267
• Combination Product (Y/N): N
• Initial Reporter Country: AS
• PMA/510(K) Number: K932755
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2023
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 01/10/2024

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?: Yes
• Device Catalogue Number: 71742850
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/06/2023
• Supplement Date Received by Manufacturer: 01/08/2024
• Initial Report FDA Received Date: 11/18/2023
• Supplement Report FDA Received Date: 01/10/2024
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: A
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Sex: Unknown