MAUDE Adverse Event Report: STRYKER SPINE-FRANCE MANTIS REDUX REDUCTION SCREW 7.5 X 40MM; PEDICLE SCREW SPINAL SYSTEM.

Model Number 48289740

Device Problems Crack (1135); Fracture (1260); Device Slipped (1584); Material Integrity Problem (2978)

Patient Problem No Known Impact Or Consequence To Patient (2692)

Event Date 03/17/2017

Event Type  malfunction  

Event Description

It was reported that : "mounting l5-s1, inserting screws*, pedicular sight with square point, pedicle probe, palpator.Insert the screw with the redux screwdriver.Installation of the rod and nut.When inserting the nut into the l5 screw head then inserting the nut into the screw head in s1.On the left side, when the nut is inserted into the screw head in s1, the screw thread has "fouled".The surgeon tried to change the nut and insert the new nut into the screw head.By breaking the fins in s1, the surgeon noticed that the nut was not holding; the screw thread has "cracked" under the reduction thread.The surgeon therefore removed the nut in l5, then the stem to replace the screw in s1.During the l5 pedicle sighting, the instrumentalist has mounted the screw on the redux screwdriver, the arms, redux vis dia.7.5 x 45 mm, sterile: 1 unit.Consequently, the instrumentalist used a new redux screw, surgical delay of 30 min".

Manufacturer Narrative

Method: visual inspection; device history review; complaint history review; risk assessment.Results: no relevant manufacturing issues were identified as all units met specifications.The device was inspected, and deformation was visible on the threading of the tulip head.Conclusion: the most likely cause of the reported event was determined to be user error.

Event Description

It was reported that : "mounting l5-s1, inserting screws*, pedicular sight with square point, pedicle probe, palpator.Insert the screw with the redux screwdriver.Installation of the rod and nut.When inserting the nut into the l5 screw head then inserting the nut into the screw head in s1.On the left side, when the nut is inserted into the screw head in s1, the screw thread has "fouled".The surgeon tried to change the nut and insert the new nut into the screw head.By breaking the fins in s1, the surgeon noticed that the nut was not holding; the screw thread has "cracked" under the reduction thread.The surgeon therefore removed the nut in l5, then the stem to replace the screw in s1.* during the l5 pedicle sighting, the instrumentalist has mounted the screw on the redux screwdriver, the arms, redux vis dia.7.5 x 45mm, sterile: 1 unit.Consequently, the instrumentalist used a new redux screw, surgical delay of 30 min".

• Brand Name: MANTIS REDUX REDUCTION SCREW 7.5 X 40MM
• Type of Device: PEDICLE SCREW SPINAL SYSTEM.
• Manufacturer (Section D): STRYKER SPINE-FRANCE; zone industrielle de marticot; cestas 33610 ; FR 33610
• Manufacturer (Section G): STRYKER SPINE-FRANCE; zone industrielle de marticot; cestas 33610 ; FR 33610
• Manufacturer Contact: christa marrow ; 2 pearl court; allendale, NJ 07401 ; 2017608000
• MDR Report Key: 6483144
• MDR Text Key: 72786868
• Report Number: 0009617544-2017-00139
• Device Sequence Number: 1
• Product Code: MNH
• UDI-Device Identifier: 04546540671257
• UDI-Public: (01)04546540671257
• Combination Product (y/n): N
• Reporter Country Code: FR
• PMA/PMN Number: K102235
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: health professional
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date: 07/20/2017

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 04/11/2017
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: No Information
• Device Model Number: 48289740
• Device Catalogue Number: 48289740
• Device Lot Number: 170898
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 06/21/2017
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 03/17/2017
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 02/21/2017
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1