MAUDE Adverse Event Report: ENCORE MEDICAL L.P. X-ALT HIGHLY CROSS LINKED VE ACETABULAR LINER; LINER/NON-HOODED-NEU, MP9, HXE-PLUS, 40MM

Model Number 430-98-056

Device Problems Loose or Intermittent Connection (1371); Failure to Align (2522)

Patient Problem Loss of Range of Motion (2032)

Event Date 02/11/2020

Event Type  Injury  

Manufacturer Narrative

The reason for this complaint is reported as after implantation surgeon ran hip through range of motion and noticed that the cup had come loose.Once the cup/liner and head was ex-planted noticed that the articulation between the head and the liner was off.Upon further inspection noticed that the liner was improperly seated.Surgeon believes that was the cause of the articulation issue.However wanted implants to be sent in for further inspection to confirm that was the cause and not a manufacturing issue.The event occurred during surgery, near the patient.The agent was present and was able to find a suitable replacement device after the surgeon realized the shell and liner were not articulating correctly.The shell and liner were inspected before use and believed to be acceptable.The surgery was completed as intended, but with a 30-minute delay.No adverse event, patient risk, or negative outcome due to the incident were reported.Rma examination: the ceramic head was returned to djo for examination.The exterior articulating surface has many scuffs of various lengths.Additionally, the taper surface on the inside of the head shows scuffs resembling the thread lines of a hip stem's trunnion, markings consistent with having had a hip stem briefly installed inside the head during surgery.When inserted into the returned shell/liner, the head can only move in one direction currently, indicating that the shell/liner interaction is causing the liner to bend in a way that's preventing a range of motion for the head.Photos are attached.The shell and liner returned to djo, still locked together.The porous coating on the outside of the shell shows some signs of bone attachment, from the few minutes in surgery when this shell was implanted.There is no obvious damage to the shell, at least what can be seen on its exterior right now.The liner is still locked into the shell.The liner has one obvious scratch on its rim, likely from explantation.Additionally, a profile view of the shell/liner shows that the liner is not seated evenly inside the shell; one side of the liner's rim sits higher out of the shell than its other side does, a difference in heights in inches of exposed liner rim above the shell's opening.

Event Description

Reported incident - during surgery after implantation, surgeon ran hip through range of motion and noticed that the cup had come loose.Once the cup/liner and head was explanted noticed that the articulation between the head and the liner was off.Upon further inspection noticed that the liner was improperly seated.Surgeon believes that was the cause of the articulation issue.However wanted implants to be sent in for further inspection to confirm that was the cause and not a manufacturing issue.

• Brand Name: X-ALT HIGHLY CROSS LINKED VE ACETABULAR LINER
• Type of Device: LINER/NON-HOODED-NEU, MP9, HXE-PLUS, 40MM
• Manufacturer (Section D): ENCORE MEDICAL L.P.; 9800 metric blvd; austin, tx 78758-5445,
• MDR Report Key: 9818562
• MDR Text Key: 183086159
• Report Number: 1644408-2020-00183
• Device Sequence Number: 1
• Product Code: LPH
• UDI-Device Identifier: 00888912084048
• UDI-Public: (01)00888912084048
• Combination Product (y/n): N
• PMA/PMN Number: K130365
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative
• Type of Report: Initial,Followup
• Report Date: 03/23/2020

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: Health Professional
• Device Expiration Date: 02/27/2023
• Device Model Number: 430-98-056
• Device Catalogue Number: 931-40-756
• Device Lot Number: 763N1989
• Was Device Available for Evaluation?: No
• Initial Date Manufacturer Received: 02/11/2020
• Initial Date FDA Received: 03/11/2020
• Supplement Dates Manufacturer Received: 03/12/2020
• Supplement Dates FDA Received: 03/23/2020
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Treatment: 400-03-403 LOT 873B1147; 400-03-403, LOT 873B1147; 430-98-056, LOT 591G1232; 931-40-756 LOT 763N1989
• Patient Age: 55 YR
• Patient Weight: 77