{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:55:10Z","timestamp":1787028910297,"version":"build-2736575974"},"reference-count":29,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,2,26]],"date-time":"2022-02-26T00:00:00Z","timestamp":1645833600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objective: 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\u2013area product (DAP), length of stay (LOS), perioperative changes in haemoglobin concentrations, and transfusion rate. Materials and Methods: 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. Results: In total, 31 patients (16 females), with a mean age of 62.81 \u00b1 15.05 years, were included. Fracture complexity assessed by the Pauwels and Garden classification did not differ between groups preoperatively. Nonetheless, the ORT (54 \u00b1 26.1 min vs. 91.68 \u00b1 23.96 min, p &lt; 0.01) and DAP (721 \u00b1 270.6 cGycm\u00b2 vs. 1604 \u00b1 1178 cGycm\u00b2, p = 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 (\u20131.77 \u00b1 1.19 g\/dl vs. \u20131.74 \u00b1 1.37 g\/dl) and LOS (8 \u00b1 5.27 days vs. 7.35 \u00b1 3.43 days) were not statistically different. Conclusions: 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.<\/jats:p>","DOI":"10.3390\/medicina58030352","type":"journal-article","created":{"date-parts":[[2022,2,27]],"date-time":"2022-02-27T20:47:17Z","timestamp":1645994837000},"page":"352","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Comparing Perioperative Outcome Measures of the Dynamic Hip Screw and the Femoral Neck System"],"prefix":"10.3390","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7264-3089","authenticated-orcid":false,"given":"Marcel","family":"Niemann","sequence":"first","affiliation":[{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin, Humboldt-Universit\u00e4t zu Berlin, Berlin Institute of Health, 13353 Berlin, Germany"},{"name":"Julius Wolff Institute for Biomechanics and Musculoskeletal Regeneration, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, 13353 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2420-7201","authenticated-orcid":false,"given":"Karl F.","family":"Braun","sequence":"additional","affiliation":[{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin, Humboldt-Universit\u00e4t zu Berlin, Berlin Institute of Health, 13353 Berlin, Germany"},{"name":"Department of Trauma Surgery, University Hospital Rechts der Isar, Technical University of Munich, 81675 Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sufian S.","family":"Ahmad","sequence":"additional","affiliation":[{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin, Humboldt-Universit\u00e4t zu Berlin, Berlin Institute of Health, 13353 Berlin, Germany"},{"name":"Department of Orthopedic Surgery, Hannover Medical School, 30625 Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulrich","family":"St\u00f6ckle","sequence":"additional","affiliation":[{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin, Humboldt-Universit\u00e4t zu Berlin, Berlin Institute of Health, 13353 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4220-2797","authenticated-orcid":false,"given":"Sven","family":"M\u00e4rdian","sequence":"additional","affiliation":[{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin, Humboldt-Universit\u00e4t zu Berlin, Berlin Institute of Health, 13353 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0435-9059","authenticated-orcid":false,"given":"Frank","family":"Graef","sequence":"additional","affiliation":[{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, Corporate Member of Freie Universit\u00e4t Berlin, Humboldt-Universit\u00e4t zu Berlin, Berlin Institute of Health, 13353 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"407","DOI":"10.1007\/PL00004148","article-title":"World-wide projections for hip fracture","volume":"7","author":"Gullberg","year":"1997","journal-title":"Osteoporos Int."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Dyer, S.M., Crotty, M., Fairhall, N., Magaziner, J., Beaupre, L.A., Cameron, I.D., and Sherrington, C. 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