MAUDE Adverse Event Report: WRIGHT MEDICAL TECHNOLOGY INC INBONE¿ TOTAL ANKLE SYSTEM; PROSTHESIS, ANKLE, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER

Model Number 200347901

Device Problems Break (1069); Fracture (1260)

Patient Problems Deformity/ Disfigurement (2360); Subluxation (4525); Implant Pain (4561)

Event Date 04/08/2022

Event Type  Injury  

Event Description

It was reported that the patient underwent a revision surgery in 2014.It is now believed that the patient may have a broken device and is in pain and the ankle is deformed.The doctor recommended not doing anything due to risk of infection and amputation if there is an issue.

Manufacturer Narrative

The device is not available for evaluation as it remains implanted in the patient.If additional information becomes available, it will be provided on a supplemental report.

Event Description

It was reported that the patient underwent a revision surgery in 2014.It is now believed that the patient may have a broken device and is in pain and the ankle is deformed.The doctor recommended not doing anything due to risk of infection and amputation if there is an issue.

Manufacturer Narrative

The reported event could not be confirmed since the device was not returned for evaluation and no other evidences were provided.Medical profession reviewed the received information and noted: the x-rays from march 30th, 2022 show a subluxation (partial dislocation) of the left ankle joint.This has to do with a lack of soft tissue support, creating instability of the left ankle joint.As a result, parts of the talar component articulates with the tibial bone, causing deformation of the bone and the formation of a neo-articulation.In this situation, asymmetrical loading of the polyethylene insert will have damaged this component without doubt.The x-rays from march 30th, 2022 show that at this moment in time the tibial component is well fixed, as indicated by the bone on growth at the proximal tip of the inbone stem.The tibial device construct looks intact.Still, there is no comparison possible with the initial position of the implant in 2012.So, whether it has subsided cannot be assessed with one moment in time available on x-rays.Without doubt the polyethylene inlay is either deformed or broken or dislodged, or a combination of this.The most posterior one of the talar baseplate fusion rod (500004945) is broken, on the x-rays from march 30th, 2022.The others are intact, providing enough support to the talar component.Since the fusion rod is crossing the subtalar joint, it can be associated with some residual movement in the subtalar joint, or with some subsidence of the talar component.Still, there is no comparison possible with the initial position of the implant in 2012.So, whether it has subsided cannot be assessed with one moment in time available on x-rays.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.No indications of material, manufacturing or design related problems were found during the investigation.More detailed information about the complaint event as well as the affected device must be available in order to determine the root cause of the complaint event.If the device is returned or if any additional information is provided, the investigation will be reassessed.

• Brand Name: INBONE¿ TOTAL ANKLE SYSTEM
• Type of Device: PROSTHESIS, ANKLE, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER
• Manufacturer (Section D): WRIGHT MEDICAL TECHNOLOGY INC; 1023 cherry rd; memphis TN 38117
• Manufacturer (Section G): WRIGHT MEDICAL TECHNOLOGY, INC.; 11576 memphis arlington rd; arlington TN 38002
• Manufacturer Contact: anna jusinski ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 14287261
• MDR Text Key: 290772648
• Report Number: 3010667733-2022-00173
• Device Sequence Number: 1
• Product Code: HSN
• UDI-Device Identifier: 00889797030830
• UDI-Public: 00889797030830
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K051023
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Consumer
• Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date: 06/27/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 05/05/2022
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Expiration Date: 10/21/2019
• Device Model Number: 200347901
• Device Catalogue Number: 200347901
• Device Lot Number: 1403239
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Date Manufacturer Received: 06/01/2022
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 10/28/2011
• 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
• Patient Age: 77 YR
• Patient Sex: Male
• Patient Weight: 86 KG