K2M, INC. EXPANDABLE ALIF; SIZE 28X36X13 MM, 5°; INTERVERTEBRAL FUSION DEVICE WITH INTEGRATED FIXATION, LUMBAR
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Model Number 5808-21336L5 |
Device Problems
Mechanical Jam (2983); Insufficient Information (3190)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 05/12/2022 |
Event Type
malfunction
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Event Description
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It was reported that a sahara al lumbar interbody spacer locking mechanism was found to be problematic outside the or.There was no associated procedure with this event, therefore, no adverse consequences to any patients were seen.
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Event Description
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It was reported that a sahara al lumbar interbody spacer locking mechanism was found to be problematic outside the or.There was no associated procedure with this event, therefore, no adverse consequences to any patients were seen.
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Manufacturer Narrative
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The returned device had severe wear, especially around the inserter attachment site.Device history records were reviewed and no relevant manufacturing issues were identified.Complaint history was reviewed and no similar complaints for the reported catalogue number were identified.The sahara al surgical technique was reviewed and the following identified: ensure the interbody is partially locked, as shown below, making sure that there is no gap between the locking teeth and that the nut is positioned posteriorly.Insert the interbody into the disc space using the inserter/expander.After the interbody is properly seated into the disc space, the large mallet may be used to aid in implant placement.X-ray or fluoroscopy may be used live or periodically to verify placement.Insert the size 8 non-tapered driver (while attached to the black 6 in-lbs torque limiting handle) through the hole labeled 'lock' on proximal end of the inserter/expander and rotate clockwise to final tighten the set screw to 6 in-lbs.The torque limiting handle is designed emit an audible 'click' at 6 in-lbs to indicate that the interbody is locked.As the locking bands behind the locking teeth are bent further back than normal, it is likely that the device was over-expanded during prep which caused the locking mechanism to be deformed back so that it is unable to engage, resulting in the jam failure.
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