MAUDE Adverse Event Report: ZIMMER SWITZERLAND MANUFACTURING GMBH BLUNT TIP SCREW, 4X42MM; AFFIXUS NATURAL NAIL SYSTEM HUMERAL NAIL

Model Number N/A

Device Problems Patient Device Interaction Problem (4001); Migration (4003)

Patient Problems Insufficient Information (4580); No Clinical Signs, Symptoms or Conditions (4582)

Event Date 03/25/2022

Event Type  Injury  

Manufacturer Narrative

Investigation of this incident is currently ongoing.A followup/ final report will be submitted when additional information becomes available.Zimmer reference (b)(4).Concomitant products: blunt tip screw, 4x50mm catalog: 47-2486-050-40 lot: 3024741; blunt tip screw, 4x65mm catalog: 47-2486-065-40 lot: 3039406; cortical bone screw, 4x24mm catalog: 47-2486-124-40 lot: 3078234; cortical bone screw, 4x26mm catalog: 47-2486-126-40 lot: 3078193; proximal humerus nail cap, 10.5x5mm catalog: 47-2488-010-05 lot: 3068499.Multiple mdr reports were filed for this event, please see associated reports: 0009613350-2022-00256, 0009613350-2022-00257, 0009613350-2022-00261.

Event Description

It was reported that 5 weeks after initial surgery, one of the proximal screws had backed out from the proper position.The surgeon is keeping an eye on the patient condition.No revision surgery will be planned so far.Attempts have been made and no further information has been provided.

Manufacturer Narrative

Event description: it was reported that operation was performed with ann nail on (b)(6), 2022.After 5 weeks from the initial, surgeon found one of the proximal screws was backed out from the proper position.The surgeon keep an eye on the patient condition as well as no revision will be planned so far.No delay.Patient outcome: migration.Review of received data: - no medical records available.- due diligence: no further due diligence required as all required information to support the conclusion is available or was already requested.Product evaluation: - no product was returned; therefore, visual and dimensional evaluation could not be performed.Review of product documentation: - device purpose: all involved devices are intended for treatment.- product compatibility: the product combination was approved by zimmer biomet.- surgical technique: the surgical technique explains that the locking of the corelock is done using the corelock driver with torque limiting handle.Turn slowly clockwise to tighten and engage the corelock mechanism until a click is felt from the torque limiting handle.- dhr review: the quality records show that all specified characteristics have met the specifications valid at the time of production with no ncr with a potential correlation to the reported event was found.Conclusion: it was reported that operation was performed with ann nail on (b)(6), 2022.After 5 weeks from the initial, surgeon found one of the proximal screws was backed out from the proper position.The surgeon keep an eye on the patient condition as well as no revision will be planned so far.The quality records show that all specified characteristics have met the specifications valid at the time of production.Based on the investigation it could be assumed that further possible contributing factors to the migration of the screw might be multifactorial related to either patient condition, behaviour or implantation procedure.If and to what extent any of these aspects may have influenced the migration of the screw remains unknown.An additional deeper investigation was performed which identified the design limitation of the corelock mechanism as a potential contributing factor.However, as further biomechanical testing was carried out and the performance is in an acceptable range in comparison with legally marketed similar devices, no design changes were conducted.In conclusion, as the cause may be multifactorial an exact root cause could not be identified for the migration of the screw.The need for corrective measures is not indicated and zimmer switzerland manufacturing gmbh considers this case as closed.Zimmer biomet¿s reference number of this file is (b)(4).

Event Description

No change to previously reported event.

• Brand Name: BLUNT TIP SCREW, 4X42MM
• Type of Device: AFFIXUS NATURAL NAIL SYSTEM HUMERAL NAIL
• Manufacturer (Section D): ZIMMER SWITZERLAND MANUFACTURING GMBH; sulzer allee 8; sulzer industrie park; winterthur 8404 ; SZ 8404
• Manufacturer (Section G): ZIMMER SWITZERLAND MANUFACTURING GMBH; sulzer allee 8; sulzer industrie park; winterthur 8404 ; SZ 8404
• Manufacturer Contact: christina arnt ; 56 e. bell dr.; warsaw, IN 46582 ; 5745273773
• MDR Report Key: 14237592
• MDR Text Key: 290289467
• Report Number: 0009613350-2022-00260
• Device Sequence Number: 1
• Product Code: HSB
• UDI-Device Identifier: 00889024505452
• UDI-Public: 00889024505452
• Combination Product (y/n): N
• Reporter Country Code: JA
• PMA/PMN Number: K181827
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,Health Professional,Company Representative
• Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date: 05/13/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 04/28/2022
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: N/A
• Device Catalogue Number: 47-2486-042-40
• Device Lot Number: 3008327
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Date Manufacturer Received: 04/14/2022
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 04/10/2019
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Removal/Correction Number: N/A
• Patient Sequence Number: 1
• Treatment: SEE NARRATIVE IN H10.
• Patient Outcome(s): Other