DEPUY SYNTHES SPINE EXPEDIUM; ORTHOSIS, SPINAL PEDICLE FIXATION, FOR DEGENERATIVE DISC DISEASE
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Model Number 179712740 |
Device Problem
Break (1069)
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Patient Problems
Failure of Implant (1924); Injury (2348); Device Embedded In Tissue or Plaque (3165)
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Event Type
Injury
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Manufacturer Narrative
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Device is available for evaluation.Investigation will be conducted.Follow up will be filed with the findings.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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Event Description
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Revision of s1 left.For broken screw.When the surgeon went to remove the screw, the tip broke part of the shank is still in patient could not retrieve, placed a new screw in s2.Surgeon thinks original surgery was done in 2014.
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Manufacturer Narrative
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Visual examination at the macroscopic level revealed that the polyaxial screw fractured along the screw shank.The distal portion of the screw shank was not returned for analysis.Device was sent for fracture analysis which suggests fatigue first propagated along the progression line across the smooth surface region, then full failure / breakage occurred in the rough region at the termination site.No material defects or other abnormalities have been identified in the fracture analysis report.A review of the device history record was conducted.No issues were identified during the manufacturing and release of this product that could have contributed to the problem reported by the customer.A trend analysis was conducted.No emerging trends were found requiring further actions.A definitive root cause for the polyaxial screw fracturing cannot be positively determined.However, the fracture analysis report identified that the failure was indicative of fatigue.As there has been no issue identified in the manufacturing or release of the device that could have contributed to the problem reported by the customer and no systemic trends were found, this complaint file will be closed with no further action required.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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Search Alerts/Recalls
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