Investigation: production process analysis: a review of the dhr demonstrated that the mid-c system was manufactured, tested, and released according to specification.Risk assessment: the current device screw pull out rate due to any reason is 2.04% (n=13) and is in line with the rate reported in the literature for this type of complication as described in the company's clinical evaluation report (0.2%-15.5%) (cer dms-727 rev u).The risk of the screw pull out has been assessed and found to be acceptable (dms#777 rev q1 ).
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