It was reported that the surgeon implanted a 6.5x55 reduction screw in l4.Upon review of placement using oarm/stealth the screw was lateral.Upon removing screw the tulip was locked at angle to the bone screw, making it hard to remove.They opted for a shorter screw, and just used a regular poly axial.
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Method: device not returned; results: the device was discarded by the hospital, so no sample is available for evaluation.Because no device was received back for evaluation, testing and inspections could not be performed to aid in root cause analysis.However, it should be noted that these devices, if over torqued enough will deform, causing loss of polyaxility.These devices are meant for one time use and reusing devices is advised against in the surgical technique.Conclusion: with no device available for evaluation, the root cause of the customer reported event could not be determined conclusively.
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It was reported that the surgeon implanted a 6.5x55 reduction screw in l4.Upon review of placement using oarm/stealth the screw was lateral.Upon removing screw the tulip was locked at angle to the bone screw, making it hard to remove.They opted for a shorter screw, and just used a regular polyaxial.
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