MAUDE Adverse Event Report: NUVASIVE SPECIALIZED ORTHOPEDICS, INC. MAGEC SPINAL BRACING AND DISTRACTION SYSTEM; GROWING ROD SYSTEM - MAGNETIC ACTUATION

Model Number MC2-5090S

Device Problems Migration or Expulsion of Device (1395); Migration (4003)

Patient Problems Failure of Implant (1924); No Clinical Signs, Symptoms or Conditions (4582)

Event Date 03/10/2021

Event Type  malfunction  

Manufacturer Narrative

The device has not been returned for evaluation as it remains in-situ and the lot number was not provided.The root cause is unable to be determined at this time.If any relevant additional information is provided, a supplemental report will be submitted.

Event Description

Information was received that the end cap migrated.According to the report, the intended lengthening has been achieved to date and there was no report of patient impact or revision surgery.No additional information is available at this time.

Manufacturer Narrative

Additional information: h.6, h.7, h.9, h.10.Even though no product has been returned, fsca investigation was performed and variation in the torque applied to the threaded cap during the assembly process was identified as the root cause of the failure.Per the manufacturing instructions, the threaded cap must be tightened to 40 in-lbs.Although all operators followed the assembly procedure, and the torque wrench indicated 40 in-lbs was applied, the manner of using the torque wrench resulted in variances in applied torque.The manner in which the operator handles the torque wrench may impact the actual torque applied to the end cap, thereby creating a false positive that the specified torque has been applied.If the specified torque is not applied, the effectiveness of the cap tightening process may be compromised.

Event Description

No new information provided.

• Brand Name: MAGEC SPINAL BRACING AND DISTRACTION SYSTEM
• Type of Device: GROWING ROD SYSTEM - MAGNETIC ACTUATION
• Manufacturer (Section D): NUVASIVE SPECIALIZED ORTHOPEDICS, INC.; 101 enterprise dr, suite 100; aliso viejo CA 92656
• MDR Report Key: 11615119
• MDR Text Key: 244918188
• Report Number: 3006179046-2021-00220
• Device Sequence Number: 1
• Product Code: PGN
• UDI-Device Identifier: 00887517834041
• UDI-Public: 887517834041
• Combination Product (y/n): N
• PMA/PMN Number: K171791
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative,health
• Remedial Action: Recall
• Type of Report: Initial,Followup
• Report Date: 06/08/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 04/05/2021
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: MC2-5090S
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Was the Report Sent to FDA?: No
• Date Manufacturer Received: 03/10/2021
• Is This a Reprocessed and Reused Single-Use Device?: No
• Removal/Correction Number: Z-1898-2020
• Patient Sequence Number: 1
• Patient Age: 7 YR
• Patient Weight: 19