This report is for an unknown nails: pfna/unknown lot.Part and lot numbers 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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Device report from synthes reports an event in (b)(6) as follows: this report is being filed after the review of the following journal article: mingo-robinet j, et al.(2021), fluoroscopic landmarks to recognize iatrogenic varus displacement (wedge effect) during cephalomedullary nailing of intertrochanteric fractures, injury, pages 1-7 (spain) the purpose of the current study is to determine the incidence of the ¿¿wedge effect¿¿ associated with usage of the intramedullary nailing for intertrochanteric femur fractures in our population and to define easy fluoroscopic landmarks to identify and prevent the wedge effect.Between january 2017 and july 2019, there were 369 extracapsular hip fractures operated in which 55 fractures with a varus malreduction were found on postoperative x-rays.Of these, 35 patients with intraoperative fluoroscopic images recorded were included in the study.A total of 31 were female, and the overall mean age was 86.6 (range 70-97) years.The included patients had residual varus malreduction of the hip operated in postoperative pelvis radiographs and with at least 1 anteroposterior and 1 axial intraoperative fluoroscopy images recorded to assess that perfect reduction in anteroposterior and axial views was obtained with close reduction at the very beginning of the procedure, and posteriorly, an iatrogenic varus malreduction was produced when inserting the nail (wedge effect).15 of these patients were treated with the unknown synthes 130 degrees proximal femoral nail antirotation, 8 with unknown synthes 125 degrees proximal femoral nail antirotation while the rest of the patients were treated with a competitor¿s device.Complications were reported as follows: a total of 55 fractures with a varus malreduction were found on postoperative x-rays.4 patients died in the first 3 months after surgery.(b)(6) a (b)(6) male implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) female implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.This patient died in the early postoperative period.(b)(6) an (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) male implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.This patient died in the early postoperative period.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) male implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) female implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) female implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) female implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) an (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 125 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.(b)(6) a (b)(6) female implanted with pfna 130 degrees had an iatrogenic varus malreduction that was produced when inserting the nail.This report is for the unknown synthes 130 degrees proximal femoral nail antirotation nail and unknown synthes 125 degrees proximal femoral nail antirotation nail.This is report 4 of 17 for (b)(4).
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