A review of the dhr demonstrated that the mid-c system was manufactured, tested, and released according to apifix specifications.According to the user (surgeon) information analysis the x-ray demonstrates the loosening of the lower screw.Screw loosening can result from several reasons such as screw misplacement, osteolysis, osteolysis secondary to a late infection, and more.At the current time ((b)(6)-2020), the company does not have sufficient information to determine the root cause for the screw loosening.Risk assessment: at the time of this report ((b)(6) 2020), the company's incident rate of screw loosening is (b)(4)% which is well within the rate reported in the literature (cer 727 rev r).
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