MAUDE Adverse Event Report: SMITH & NEPHEW, INC. UNKNOWN LEGION HINGE TOTAL KNEE FEM ASSEMBLY; PROSTHESIS, KNEE, FEMOROTIBIAL, CONSTRAINED, CEMENTED, METAL/POLYMER

Catalog Number UNKNOWN

Device Problem Loosening of Implant Not Related to Bone-Ingrowth (4002)

Patient Problem Joint Laxity (4526)

Event Date 08/01/2022

Event Type  Injury  

Event Description

On the literature review "short- to midterm outcomes of a novel guided-motion rotational hinged total knee arthroplasty", it was reported that, after undergoing a total knee arthroplasty with a legion hinge knee system, one (1) patient experienced aseptic loosening.This event was treated with a femoral revision surgery.Patient's outcome is unknown.No further information is available at this time.

Manufacturer Narrative

Internal complaint reference: case-(b)(4).This complaint was opened by (b)(6) nephew to document a patient complication identified through a review of clinical evidence from literature sources that includes reference to the use of a (b)(6) nephew product.The reported issue(s) relate to known inherent procedural risks that are appropriately documented in our risk files.(b)(6) nephew will continue to monitor trends in accordance with our post-market surveillance process and take necessary action as required if anticipated severity and/or occurrence rates are exceeded.Smith+nephew has no reason to suspect that the product failed to meet any specifications at the time of manufacture.Based on our review of all currently available information, we are unable to confirm a relationship between the reported event and the device or identify a definitive root cause.However, as the use of our product cannot be excluded as a potential cause or contributory factor to the reported issue, we are conservatively submitting this report in accordance with applicable regulations.If additional information becomes available that alters the conclusions of this report, a follow-up report will be submitted as required.

• Brand Name: UNKNOWN LEGION HINGE TOTAL KNEE FEM ASSEMBLY
• Type of Device: PROSTHESIS, KNEE, FEMOROTIBIAL, CONSTRAINED, CEMENTED, METAL/POLYMER
• 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: 16233574
• MDR Text Key: 308006504
• Report Number: 1020279-2023-00172
• Device Sequence Number: 1
• Product Code: KRO
• Combination Product (y/n): N
• Reporter Country Code: US
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Foreign,Literature,Health Professional,Company Representative
• Reporter Occupation: Physician
• Type of Report: Initial
• Report Date: 01/24/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 01/24/2023
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Catalogue Number: UNKNOWN
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 01/23/2023
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Outcome(s): Hospitalization; Required Intervention