The cut-out group had 29 patients (24 females and 5 males) with a mean age of 83.3 years.Pma/510k: this report is for an unknown helical blade/unknown lot.Part and lot number are unknown; udi number is unknown.Complainant part is not expected to be returned for manufacturer review/investigation.Without a lot number the device history records review could not be completed.Product was not returned.Based on the information available, it has been determined that no corrective and/or preventative action is proposed.This complaint will be accounted for and monitored via post market surveillance activities.If additional information is made available, the investigation will be updated as applicable.Device was used for treatment, not diagnosis.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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This report is being filed after the review of the following journal article: brunner, a.Et al.(2016), what is the optimal salvage procedure for cut-out after surgical fixation of trochanteric fractures with the pfna or tfn? a multicentre study, injury, vol.47, pages 432-438 (austria).The purpose of the study was to evaluate the failure and success rates of salvage procedures for cutting-out and cutting-through of blades and to offer data-based recommendations on the optimal treatment strategy for each type of complication.Between 2003 and 2010, 57 patients underwent nailing of trochanteric fractures using pfna or tfn.These patients were divided into 2 groups.The cut-through group had 28 patients (22 females and 6 males) with a mean age of 77.8 years.The cut-out group had 29 patients (24 females and 5 males) with a mean age of 83.3 years.The following complications were reported as follows: 1 patient died after a follow-up period of 5.7 months for medical reasons unrelated to implant failure.21 patients had moderate reductions and 26 cases had poor reductions 28 patients had a cut-through of the helical blade (3 for tfn and 25 for pfna) all these patients had revision surgery 29 patients had a cut-out of the helical blade (7 for tfn and 22 for pfna) patients underwent metal removal and re-nailing of the fracture with a new pfna.One of these fractures healed.One patient developed re-perforation of the blade and required a second revision procedure with tha.One patient sustained a deep wound infection after re-nailing and required two more revision operations.Finally, the patient had a cement spacer inserted, which became the definite treatment.This report is for an unknown helical blade.This is report 19 of 20 for (b)(4) which captures cut-out of the helical blade and revision surgery.Additional complications are captured on related complaints (b)(4).
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