MAUDE Adverse Event Report: MEDOS INTERNATIONAL SÃ RL CH VIPER 2 SYSTEM ROD, PRE-LORDOSED 40MM; APPLIANCE, FIXATION, SPINAL INTERLAMINAL

Catalog Number	186788040
Medical Device Problem Code	Device-Device Incompatibility (2919)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/13/2024
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the patient underwent a transforaminal lumbar interbody fusion (l4, l5) for cervical spinal canal stenosis on (b)(6) 2024.In the surgery, after the screws were inserted and the rods installed, the front and sides of the image were checked and the tabs were folded for the final fastening.When the surgeon did a final check on the image before closing, the screws in question had to be reinserted.The left set screw and the rod in question were removed, and the l4 and l5 screws were extracted and reinserted.Viper prime used a new screw because there is no screwdriver that can insert a screw without a tab.The surgery was completed successfully with 30 minutes surgical delay.There was no adverse consequence to the patient, and no other medical intervention was required.This report involves one viper 2 system rod, pre-lordosed 40mm this is report 1 of 3 for (b)(4).
Additional Manufacturer Narrative
Depuy synthes is submitting this report pursuant to the provisions of 21 cfr, part 803.This report may be based on information which depuy synthes has not been able to investigate or verify prior to the required reporting date.This report does not reflect a conclusion by fda, depuy synthes or its employees that the report constitutes an admission that the device, depuy synthes, or its employees caused or contributed to the potential event described in this report.If the information is unknown, not available or does not apply, the section/field of the form is left blank.H11 additional narrative: d2b: additional device product codes: mni, nkb, kwq, mnh, osh d9: complainant part is expected to be returned for manufacturer review/investigation, but has yet to be received.E3: reporter is a j&j employee.H3, h6: the investigation could not be completed; no conclusion could be drawn, as no product was received.Based on the information available, it has been determined that no corrective and/or preventative action is proposed.This complaint will be accounted for and monitored via post market surveillance activities.If additional information is made available, the investigation will be updated as applicable.Device was used for treatment, not diagnosis.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
Additional Manufacturer Narrative
Depuy synthes is submitting this report pursuant to the provisions of 21 cfr, part 803.This report may be based on information which depuy synthes has not been able to investigate or verify prior to the required reporting date.This report does not reflect a conclusion by fda, depuy synthes or its employees that the report constitutes an admission that the device, depuy synthes, or its employees caused or contributed to the potential event described in this report.If the information is unknown, not available or does not apply, the section/field of the form is left blank.Additional narrative: h3, h4, h6: part: 186788040; lot: csabpn; a review of the receiving inspection viper2 lord.Trial rod-40mm was conducted identifying that lot number csabpn released in one batch.Supplier: (b)(4).Batch1: released on 11 september 2023 with no discrepancies.The ri identified no issues during the manufacturing and release of this device that could have contributed to the problem reported by the customer.The product was returned to depuy synthes for evaluation.The depuy synthes team conducted a visual inspection of the returned device.Visual analysis of the returned sample revealed that there was no damage or defects with the viper2 lordotic rod-40mm.The device exhibits signs of extraction damage, which aligns with the reported issue of screw reinsertion.However, the functional test, which could have provided definitive evidence of the device's performance, was not conducted because the mating nut device was not returned.The primary reason for not being able to confirm the complaint is the absence of the mating device, which prevented the execution of a functional test.Without this test, it is impossible to determine whether the screws and rods would have functioned correctly under normal conditions or if the extraction damage directly impacted the functionality.Additionally, it is possible that the damage observed on the screws occurred during the reinsertion process in the surgery, as indicated by the surgical delay and the need to use a new screw due to the lack of a compatible screwdriver for screws without a tab.This procedural difficulty could have contributed to the reported issue, but without the functional test.The viper primetm surgical technique was reviewed.Following relevant statements were found.Rotate the torque wrench handle clockwise, while applying counter-torque, until the torque handle clicks.--the final torque applied will be 80 in-lbs.Repeat for all additional set screws.It is recommended to revisit all set screws to ensure a rigidly locked construct post operatively.Set screws should be flush with the top of the screw heads indicating they are fully seated.A dimensional inspection was not performed since it was not applicable to the complaint condition.The overall complaint was not confirmed as the viper2 lordotic rod-40mm was found to have no damage or defects.No definitive root cause could be determined.There was no indication that a design or manufacturing issue contributed to the complaint.Based on the investigation findings, it has been determined that no corrective and/or preventative action is proposed.Additional monitoring for any potential safety signals will be conducted through complaint trending and other post-market safety surveillance activities.As part of depuy synthes quality process, all devices are manufactured, inspected, and released to approved specifications.Drawing/specifications reviewed current and manufactured revisions were reviewed.Device was used for treatment, not diagnosis.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.

• Brand Name: VIPER 2 SYSTEM ROD, PRE-LORDOSED 40MM
• Common Device Name: APPLIANCE, FIXATION, SPINAL INTERLAMINAL
• Manufacturer (Section D): MEDOS INTERNATIONAL SÃ RL CH; chemin-blanc 38; le locle 02400 ; SZ 02400
• Manufacturer (Section G): MEDOS INT SPINE; chemin blanc 38; le locle ; SZ
• Manufacturer Contact: kate karberg ; chemin-blanc 38; le locle ; SZ ; 3035526892
• MDR Report Key: 19720597
• Report Number: 1526439-2024-01794
• Device Sequence Number: 8290295
• Product Code: KWP
• UDI-Device Identifier: 10705034131733
• UDI-Public: (01)10705034131733(11)230911(10)CSABPN
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K111136
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: 186788040
• Device Lot Number: CSABPN
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 06/13/2024
• Supplement Date Received by Manufacturer: 07/16/2024
• Initial Report FDA Received Date: 07/11/2024
• Supplement Report FDA Received Date: 08/12/2024
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 09/11/2023
• 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: Unknown
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: VIPER PRIME CFX XTAB 7X45MM TI.; VIPER PRIME CFX XTAB 7X50MM TI.
• Patient Sex: Unknown