Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System

<i>Background and Objective</i>: Various fixation devices and surgical techniques are available for the management of proximal femur fractures. Recently, the femoral neck system (FNS) was introduced, and was promoted on the basis of less invasiveness, shorter operating time, and less flu...

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Main Authors: Marcel Niemann, Karl F. Braun, Sufian S. Ahmad, Ulrich Stöckle, Sven Märdian, Frank Graef
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1648-9144/58/3/352
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author Marcel Niemann
Karl F. Braun
Sufian S. Ahmad
Ulrich Stöckle
Sven Märdian
Frank Graef
author_facet Marcel Niemann
Karl F. Braun
Sufian S. Ahmad
Ulrich Stöckle
Sven Märdian
Frank Graef
author_sort Marcel Niemann
collection DOAJ
description <i>Background and Objective</i>: Various fixation devices and surgical techniques are available for the management of proximal femur fractures. Recently, the femoral neck system (FNS) was introduced, and was promoted on the basis of less invasiveness, shorter operating time, and less fluoroscopy time compared to previous systems. The aim of this study was to compare two systems for the internal fixation of femoral neck fractures (FNF), namely the dynamic hip screw (DHS) with an anti-rotation screw (ARS) and an FNS. The outcome measures included operating room time (ORT), dose–area product (DAP), length of stay (LOS), perioperative changes in haemoglobin concentrations, and transfusion rate. <i>Materials and Methods</i>: A retrospective single-centre study was conducted. Patients treated for FNF between 1 January 2020 and 30 September 2021 were included, provided that they had undergone closed reduction and internal fixation. We measured the centrum-collum-diaphyseal (CCD) and the Pauwels angle preoperatively and one week postoperatively. <i>Results</i>: In total, 31 patients (16 females), with a mean age of 62.81 ± 15.05 years, were included. Fracture complexity assessed by the Pauwels and Garden classification did not differ between groups preoperatively. Nonetheless, the ORT (54 ± 26.1 min vs. 91.68 ± 23.96 min, <i>p</i> < 0.01) and DAP (721 ± 270.6 cGycm² vs. 1604 ± 1178 cGycm², <i>p</i> = 0.03) were significantly lower in the FNS group. The pre- and postoperative CCD and Pauwels angles did not differ statistically between groups. Perioperative haemoglobin concentration changes (–1.77 ± 1.19 g/dl vs. –1.74 ± 1.37 g/dl) and LOS (8 ± 5.27 days vs. 7.35 ± 3.43 days) were not statistically different. <i>Conclusions</i>: In this cohort, the ORT and DAP were almost halved in the patient group treated with FNS. This may confer a reduction in secondary risks related to surgery.
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spelling doaj.art-91ed2ff613ae485cb3b94fe9b97821a62023-11-30T21:25:43ZengMDPI AGMedicina1010-660X1648-91442022-02-0158335210.3390/medicina58030352Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck SystemMarcel Niemann0Karl F. Braun1Sufian S. Ahmad2Ulrich Stöckle3Sven Märdian4Frank Graef5Center for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 13353 Berlin, GermanyCenter for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 13353 Berlin, GermanyCenter for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 13353 Berlin, GermanyCenter for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 13353 Berlin, GermanyCenter for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 13353 Berlin, GermanyCenter for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, 13353 Berlin, Germany<i>Background and Objective</i>: Various fixation devices and surgical techniques are available for the management of proximal femur fractures. Recently, the femoral neck system (FNS) was introduced, and was promoted on the basis of less invasiveness, shorter operating time, and less fluoroscopy time compared to previous systems. The aim of this study was to compare two systems for the internal fixation of femoral neck fractures (FNF), namely the dynamic hip screw (DHS) with an anti-rotation screw (ARS) and an FNS. The outcome measures included operating room time (ORT), dose–area product (DAP), length of stay (LOS), perioperative changes in haemoglobin concentrations, and transfusion rate. <i>Materials and Methods</i>: A retrospective single-centre study was conducted. Patients treated for FNF between 1 January 2020 and 30 September 2021 were included, provided that they had undergone closed reduction and internal fixation. We measured the centrum-collum-diaphyseal (CCD) and the Pauwels angle preoperatively and one week postoperatively. <i>Results</i>: In total, 31 patients (16 females), with a mean age of 62.81 ± 15.05 years, were included. Fracture complexity assessed by the Pauwels and Garden classification did not differ between groups preoperatively. Nonetheless, the ORT (54 ± 26.1 min vs. 91.68 ± 23.96 min, <i>p</i> < 0.01) and DAP (721 ± 270.6 cGycm² vs. 1604 ± 1178 cGycm², <i>p</i> = 0.03) were significantly lower in the FNS group. The pre- and postoperative CCD and Pauwels angles did not differ statistically between groups. Perioperative haemoglobin concentration changes (–1.77 ± 1.19 g/dl vs. –1.74 ± 1.37 g/dl) and LOS (8 ± 5.27 days vs. 7.35 ± 3.43 days) were not statistically different. <i>Conclusions</i>: In this cohort, the ORT and DAP were almost halved in the patient group treated with FNS. This may confer a reduction in secondary risks related to surgery.https://www.mdpi.com/1648-9144/58/3/352dynamic hip screwfemoral neck systemfemoral neck fractureindividual medicineminimal-invasive surgerymultiple trauma
spellingShingle Marcel Niemann
Karl F. Braun
Sufian S. Ahmad
Ulrich Stöckle
Sven Märdian
Frank Graef
Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System
Medicina
dynamic hip screw
femoral neck system
femoral neck fracture
individual medicine
minimal-invasive surgery
multiple trauma
title Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System
title_full Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System
title_fullStr Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System
title_full_unstemmed Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System
title_short Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System
title_sort comparing perioperative outcome measures of the dynamic hip screw and the femoral neck system
topic dynamic hip screw
femoral neck system
femoral neck fracture
individual medicine
minimal-invasive surgery
multiple trauma
url https://www.mdpi.com/1648-9144/58/3/352
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