MAUDE Adverse Event Report: SMITH & NEPHEW, INC. GII CR DEEP FLEX ISRT S5-6 9M; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL

Catalog Number 71421542

Device Problem Noise, Audible (3273)

Patient Problems Arthralgia (2355); Ambulation Difficulties (2544); Joint Laxity (4526)

Event Date 06/01/2023

Event Type  Injury  

Manufacturer Narrative

Internal reference number: (b)(4).H10: smith & nephew is submitting this report pursuant to the provisions of 21 c.F.R.Part 803.This report may be based upon information which smith & nephew has not been able to investigate or verify prior to the required reporting date.This report does not reflect a conclusion by fda, smith & nephew, or its employees, that the report constitutes an admission that the device, smith & nephew or its employees caused or contributed to the potential event described in this report.

Event Description

It was reported that, after a tka surgery had been performed on (b)(6) 2023 on a patient´s right knee, patient experienced a constant pain after 2 months of operation.The joint began to rattle and crack, these noises occur with every movement.The patient is now walking again with crutches after 8 months.There is a very good range of motion of the entire knee joint up to 130 degrees, but a clear band instability both medially and laterally.Revision surgery still pending due to missing examination by a cardiologist.Event is ongoing.

Manufacturer Narrative

Additional information: h6 (component code, type of investigation, investigation findings, investigation conclusions).Results of investigation: due to the nature of the alleged incident, a device analysis could not be performed.The clinical/medical investigation concluded that, based on the documentation provided, joint instability possibly due to a combination of ligament laxity along with an undersized insert selection of primary components.Additionally, the ct finding that the patella surface is too close to the femoral prosthesis is also most likely contributing to the patient¿s knee joint symptoms/audible rattle-cracks and a user technique/variance cannot be ruled out as a contributing factor to the reported events.The patient impact includes the reported increased/persistent knee pain with instability, ambulation difficulties/requires assist device, and need for revision.The revision was reportedly postponed due to the pending cardiac clearance in this patient with significant congenital heart disease/history.A review of the production order did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history for the part number over the past 12 months and for the batch number based on historical data of the device did not reveal similar events for the listed device.A review of the instructions for use documents for knee systems revealed in warnings and precautions, postoperative section that use extreme care in patient handling is needed and postoperative patient care and directions and warnings to patients by physicians are extremely important.Protected weight bearing with external support is recommended for a period of time to allow healing.Normal daily activity may be resumed at the physician¿s direction.Patients should be directed to seek medical opinion before entering potentially adverse environments that could affect the performance of the implant.A review of the risk management files 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 these products and event.At this time, we have no evidence to conclude that the products failed to meet any specifications at the time of manufacture.Factors that could contribute to the reported event include traumatic injury, joint tightness, patient condition or postoperative care.Based on this investigation, the need for corrective action is not indicated.Should the devices 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.Corrected data: h6 (health effect - clinical code, health effect - impact code).

• Brand Name: GII CR DEEP FLEX ISRT S5-6 9M
• Type of Device: PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL
• 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: 18619240
• MDR Text Key: 334243914
• Report Number: 1020279-2024-00262
• Device Sequence Number: 1
• Product Code: JWH
• UDI-Device Identifier: 03596010512475
• UDI-Public: 03596010512475
• Combination Product (y/n): N
• Reporter Country Code: GM
• PMA/PMN Number: K041825
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Foreign,Consumer
• Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date: 03/08/2024

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?: No
• Device Operator: Lay User/Patient
• Device Catalogue Number: 71421542
• Device Lot Number: 22JM14911
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Initial Date Manufacturer Received: 01/10/2024
• Initial Date FDA Received: 01/31/2024
• Supplement Dates Manufacturer Received: 03/07/2024
• Supplement Dates FDA Received: 03/08/2024
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 09/21/2022
• 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
• Treatment: 71420188/GNS II CMT TIB SIZE 6 RIGHT; 71423216/LEGION CR NP FEM SZ 6 RT
• Patient Outcome(s): Other
• Patient Age: 69 YR
• Patient Sex: Male