MAUDE Adverse Event Report: MEDOS INTERNATIONAL SÃ RL CH EXPEDIUM SPINE SYSTEM POLYAXIAL SCREW 5.5 X 9 X 90MM; APPLIANCE, FIXATION, SPINAL INTERLAMINAL

Model Number 179712990

Device Problem Device-Device Incompatibility (2919)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 01/19/2022

Event Type  malfunction  

Manufacturer Narrative

Additional narrative: additional device product codes: (b)(4).Complainant part is not expected to be returned for manufacturer review/investigation.Without a lot number the device history records review could not be completed.Product was not returned.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.

Event Description

Device report from synthes reports an event in the (b)(6) as follows: it was reported that on (b)(6) 2022, during a pelvic surgery on the right side, the surgeon prepped the pelvis for screw insertion.The surgeon used a pedicle finder to create a track and then tapped the intended screw hole.A screw was selected and loaded onto the screwdriver.The screw was inserted under normal force.An x-ray was taken and at this point the semi inserted screw was disengaged from the screwdriver.X-ray was taken and then the screwdriver was reattached.The surgeon then began to struggle to advance the screw and significantly more force was required.The screw stopped advancing, the driver was disengaged, it was noted that the distal end of the screwdriver had broken off inside the screw shaft thus preventing advancement.It was decided to place a rod in the screwhead, lock the rod down with a set screw and ¿helicopter¿ the screw out.This unfortunately led to the tulip shearing off the screw shaft.The broken screw shaft was now stuck in the pelvis and had to be burred out.Multiple attempts were made to remove the screw with a screw removal kit and other instrumentation.On left side of the patient, the fellow prepped pelvis for screw insertion.He used a pedicle finder to create a track and then tapped the intended screw hole.The screw was selected and loaded onto the screwdriver.The screw was inserted under normal force.Xray was taken.Once 8cm of screw had been inserted the surgeon needed considerable force to advance the screw.The screwdriver was disengaged from the screw and then reattached.The screw was advancing but an unusual amount of force was required.The screwdriver was detached, the distal end of the screw driver had broken off into the screw shaft.The threads on the screwdriver had been damaged/stripped.Metal fragments were found.A rod was placed into the screwhead and the surgeon attempted to lock a set screw down in order to ¿helicopter¿ the screw out.This attempt was unsuccessful as the surgeon noted that the screw head was completely damaged i.E threads.The broken screw was stuck in the pelvis and had to be removed using a burr/osteotome.There was a surgical delay.The screws had to be tunnelled out of the patient¿s pelvis and bone was sacrificed.This report involves one (1) expedium spine system polyaxial screw (b)(4).This is report 3 of 4 for (b)(4).

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.H10: additional narrative: h3, h6: a photo investigation was completed: visual analysis of the provided photo identified the screw is covered in bodily fluids from the patient, it was not possible to identify any indication of a product defect.As the device was not returned, an as-received condition could not be assessed, and a dimensional inspection and document/specification review were not completed.As part of depuy synthes quality process, all devices are manufactured, inspected, and released to approved specifications.The overall complaint was not confirmed.There is no indication that a design or manufacturing issue has caused the complaint condition and hence the root cause cannot be determined.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.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: EXPEDIUM SPINE SYSTEM POLYAXIAL SCREW 5.5 X 9 X 90MM
• Type of Device: 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: kara ditty-bovard ; chemin-blanc 38; le locle 02400 ; SZ 02400 ; 6103142063
• MDR Report Key: 13559414
• MDR Text Key: 285995903
• Report Number: 1526439-2022-00243
• Device Sequence Number: 1
• Product Code: NKB
• UDI-Device Identifier: 10705034068336
• UDI-Public: (01)10705034068336
• Combination Product (y/n): N
• Reporter Country Code: UK
• PMA/PMN Number: K101993
• 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

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 02/18/2022
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: 179712990
• Device Catalogue Number: 179712990
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 03/11/2022
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Is the Device Single Use?: Yes
• Type of Device Usage: Unknown
• Patient Sequence Number: 1
• Treatment: EXP TI POLY SCREW 10MMX100MM; UNKNOWN LOCKING/SET SCREWS; UNKNOWN PEDICLE FINDER; UNKNOWN RODS; UNKNOWN SCREWDRIVERS; XPDM QUICK-CON SI POLY SCWDRVR