MAUDE Adverse Event Report: DEPUY ORTHOPAEDICS INC US SIGMA; SIGMA REVISION IMPLANT : KNEE FEMORAL

Catalog Number	960088
Medical Device Problem Code	Loss of or Failure to Bond (1068)
Health Effect - Clinical Codes	Fall (1848); Pain (1994); Limb Fracture (4518)
Date of Event	03/30/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Product complaint: (b)(4).This report is being submitted pursuant to the provisions of 21 cfr, part 803 (and/or part 4, as applicable).This report may be based on information which has not been investigated or verified prior to the required reporting date.This report does not reflect a conclusion by depuy synthes, or its employees that the report constitutes an admission that the product, depuy synthes, or its employees caused or contributed to the potential event described in this report.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
Event or Problem Description
Patient was revised due to loosening of the femoral component at the unknown interface because of a broken condyle.Cement manufacturer was unknown.Implant was put in on (b)(6) 2019.The patient was complaining of pain and the bone scan showed loosening of the femoral implant.When they got in there, the implant was loose because there was a fracture of the lateral femoral condyle after several falls.No infection was present so they went to a prom hinge.Doi: (b)(6) 2019.Dor: (b)(6) 2026.Affected side: right knee.
Additional Manufacturer Narrative
Product complaint #: (b)(4).Investigation summary: no device associated with this report was received for examination.The product investigation found no evidence suspecting an error in the manufacturing or material that would be a contributing factor in the reported allegation(s).A records evaluation (mre) was not perform.As part of our company quality system process, all devices are manufactured, inspected, and distributed to approved specifications.Additional complaint information monitoring for potential safety signals will be conducted through complaint trending as part of the post-market surveillance.If additional information is made available, the investigation will be updated as applicable.Device history lot: there is no evidence suspecting an error in the manufacturing or material that would be a contributing factor in the reported allegation(s).A manufacturing records evaluation (mre) was not performed.Added: d10.
Additional Manufacturer Narrative
Product complaint: (b)(4).This report is being submitted pursuant to the provisions of 21 cfr, part 803.This report may be based on information which has not been investigated or verified prior to the required reporting date.This report does not reflect a conclusion by depuy synthes joint reconstruction, or its employees that the report constitutes an admission that the product, depuy synthes joint reconstruction, or its employees caused or contributed to the potential event described in this report.H11 additional narrative: added: b5.If information is obtained that was not available for the initial report, a follow-up report will be filed as appropriate.
Event or Problem Description
Additional information received: a.Can you please provide the implant date? (b)(6) 2019.B.Is there any allegation against tc3 rp tibial insert s3,12.5? no allegation against the poly.C.Please clarify loosening interface of the femoral component.No loosening, the condyls were gone and he wanted more restraint.

• Brand Name: SIGMA
• Common Device Name: SIGMA REVISION IMPLANT : KNEE FEMORAL
• Manufacturer (Section D): DEPUY ORTHOPAEDICS INC US; 700 orthopaedic drive; warsaw IN 46581 0988
• Manufacturer (Section G): JTE WARSAW MFG SITE; 700 orthopaedic drive; warsaw IN 46582
• Manufacturer Contact: elba bello ; 700 orthopaedic dr.; warsaw, IN 46581 ; 9083863534
• MDR Report Key: 24956958
• Report Number: 1818910-2026-07362
• Device Sequence Number: 18649396
• Product Code: JWH
• UDI-Device Identifier: 10603295232551
• UDI-Public: (01)10603295232551(17)280430(10)HW4968
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: K952830
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup

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
• Operator of Device: Health Professional
• Device Catalogue Number: 960088
• Device Lot Number: HW4968
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 04/06/2026
• Supplement Date Received by Manufacturer: 04/28/2026; 04/27/2026
• Initial Report FDA Received Date: 04/22/2026
• Supplement Report FDA Received Date: 04/28/2026; 05/04/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 05/16/2018
• 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: PFC SIGMA FEM POST AUG SZ3 8 MM; SIGMA FEM ADAPTER 5 DEGREE; SIGMA FEM ADAPTER NEUTRAL BOLT; TC3 RP TIBIAL INSERT S3,12.5
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Sex: Male