Model Number 6541104 |
Device Problem
Device Dislodged or Dislocated (2923)
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Patient Problems
Foreign Body Reaction (1868); Post Operative Wound Infection (2446)
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Event Date 02/27/2024 |
Event Type
Injury
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Manufacturer Narrative
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Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
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Event Description
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Information was received from healthcare provider (hcp) via a manufacturer representative regarding a patient had olif (l2/3/4) and t10~sai fixation and l5/splif from the rear.It was reported that the loose screw caused infection in patient.Although fixation was performed from t10 to sai, a wound appeared on the skin of the right sai area and pus also came out.When it was deployed, the tissue from the skin surface to the screw head continued to have dark granulation, and there was pus in the surrounding area.The set screw in the screw head was loose enough that it could be removed with forceps, and the surrounding tissue showed dark spots and black powdery matter.The screw that had been inserted had a clear zone on the image, but it was reasonably effective.The right side was in a noticeable condition, but when checked the left side, it was in the same condition.A revision surgery was performed due to suspicion of metallosis due to wear particles of the implant, black granulation on the soft tissues, wounds on the wound surface and pus in the vicinity.Implant was cut and removed.Initial surgery was done on (b)(6) 2023.Additional information received.The set screws were loose.There were no looseness or problem observed with the screw or prolock link.Additional information received.The rod installed in (passed through) the ballast closed is (b)(6)).This time, both set screws were loose.Therefore, it is considered that the rod went back and forth in the head of the ballast closed, and wear particles were released.Among the removed and recovered implant, there was a cut piece of a rod ((b)(6))) that was held in place to remove the ballast placed in sai.It is unclear why the set screw came loose.There may be evidence of metal scraping due to rubbing on the inside of the ballast closed head.There may also be signs of scuffing on the rod.
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Manufacturer Narrative
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H3: product analysis part # 6541104 lot # h5786679 visual and optical inspection revealed the bottom of the set screw has been worn down.Damage present is consistent with wear from rubbing against the loose rod.Additional information: d9, g3, h3, h6.Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
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Search Alerts/Recalls
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