Current information is insufficient to permit a conclusion as to the cause of the event.Review of device history records show the lot released with no recorded anomaly or deviation.(b)(4).There are warnings in the package insert that state that this type of event can occur: under possible adverse effects, number 9 states, "dislocation and subluxation due to inadequate fixation and improper positioning.Muscle and fibrous tissue laxity or excessive activity can also contribute to these conditions.".
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