{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:15:12Z","timestamp":1760058912788,"version":"build-2065373602"},"reference-count":45,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2025,5,8]],"date-time":"2025-05-08T00:00:00Z","timestamp":1746662400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Objectives: Achieving optimal primary stability in cemented total hip arthroplasty remains a critical factor influencing long-term implant success. Variability in cementation techniques can significantly affect biomechanical performance, yet consensus on best practices is lacking. This study investigates the influence of cementation parameters on femoral stem fixation. Methods: This in vitro comparative study evaluated four cementation techniques\u2014Classic (line-to-line), Press-Fit (undersized reaming), Overreaming (oversized reaming), and Valgus Malpositioning (15\u00b0 deviation). An experimental model using standardized Polyurethane (PU) bone surrogates was developed. Mechanical testing assessed axial deformation and ultimate load capacity to failure. Results: The Press-Fit technique demonstrated significantly greater deformation (17.10 \u00b1 0.89 mm) but a reduced load capacity (6317.47 \u00b1 518.34 N) compared to the Classic approach. Overreaming and Valgus techniques both showed reduced mechanical performance, with Overreaming yielding the lowest structural integrity. Conclusions: Cement mantle thickness emerged as the primary determinant of biomechanical stability, surpassing the impact of implant positioning. While increased mantle thickness improves energy absorption, it may compromise ultimate strength. These findings underscore the importance of optimizing the cementation technique to balance flexibility and mechanical resistance, guiding surgical protocols toward improved implant longevity. This study introduces a novel integrative approach combining fluoroscopic assessment of cement mantle morphology with mechanical testing in a standardized model, providing new evidence on the relative influence of mantle thickness and implant malposition on femoral stem stability.<\/jats:p>","DOI":"10.3390\/jcm14103291","type":"journal-article","created":{"date-parts":[[2025,5,8]],"date-time":"2025-05-08T11:37:02Z","timestamp":1746704222000},"page":"3291","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Biomechanical Impact of Cementation Technique Variations on Femoral Stem Stability: An In Vitro Polyurethane Model Study"],"prefix":"10.3390","volume":"14","author":[{"given":"Roland","family":"Fazakas","sequence":"first","affiliation":[{"name":"Doctoral School of Medicine, \u201cVasile Goldi\u0219\u201d Western University of Arad, 310025 Arad, Romania"},{"name":"Department of Biology and Life Sciences, Faculty of Medicine, \u201cVasile Goldi\u0219\u201d Western University of Arad, 310025 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-0121-9629","authenticated-orcid":false,"given":"Laura Ioana","family":"Bondar","sequence":"additional","affiliation":[{"name":"Department of Biology and Life Sciences, Faculty of Medicine, \u201cVasile Goldi\u0219\u201d Western University of Arad, 310025 Arad, Romania"},{"name":"Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Csongor","family":"Toth","sequence":"additional","affiliation":[{"name":"Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania"},{"name":"Faculty of Physical Education and Sport, \u201cAurel Vlaicu\u201d University of Arad, 310130 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-2313-5053","authenticated-orcid":false,"given":"Brigitte","family":"Osser","sequence":"additional","affiliation":[{"name":"Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania"},{"name":"Faculty of Physical Education and Sport, \u201cAurel Vlaicu\u201d University of Arad, 310130 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0036-239X","authenticated-orcid":false,"given":"Iosif","family":"Ilia","sequence":"additional","affiliation":[{"name":"Faculty of Physical Education and Sport, \u201cAurel Vlaicu\u201d University of Arad, 310130 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caius Calin","family":"Miuta","sequence":"additional","affiliation":[{"name":"Faculty of Physical Education and Sport, \u201cAurel Vlaicu\u201d University of Arad, 310130 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dan","family":"Fruja","sequence":"additional","affiliation":[{"name":"Department of General Medicine, Faculty of Medicine, \u201cVasile Goldi\u0219\u201d Western University of Arad, 310025 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0135-6861","authenticated-orcid":false,"given":"Diana Carina","family":"Iovanovici","sequence":"additional","affiliation":[{"name":"Institute of Cardiovascular Diseases Timi\u0219oara, Gheorghe Adam Street, No. 13A, 300310 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liviu","family":"Gavrila-Ardelean","sequence":"additional","affiliation":[{"name":"Prosthetic Dentistry, Faculty of Dental Medicine, \u201cVasile Goldi\u0219\u201d Western University of Arad, 310025 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandru","family":"Pop","sequence":"additional","affiliation":[{"name":"Doctoral School of Medicine, \u201cVasile Goldi\u0219\u201d Western University of Arad, 310025 Arad, Romania"},{"name":"Department of General Medicine, Faculty of Medicine, \u201cVasile Goldi\u0219\u201d Western University of Arad, 310025 Arad, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,8]]},"reference":[{"key":"ref_1","first-page":"e56350","article-title":"A Comprehensive Review of Total Hip Arthroplasty Outcomes in Post-traumatic Hip Arthritis: Insights and Perspectives","volume":"16","author":"Choudhary","year":"2024","journal-title":"Cureus"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Drobniewski, M., Gonera, B., Olewnik, \u0141., Borowski, A., Ruzik, K., Triantafyllou, G., and Borowski, A. 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Implant Dent."}],"container-title":["Journal of Clinical Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2077-0383\/14\/10\/3291\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T17:29:45Z","timestamp":1760030985000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2077-0383\/14\/10\/3291"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,5,8]]},"references-count":45,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2025,5]]}},"alternative-id":["jcm14103291"],"URL":"https:\/\/doi.org\/10.3390\/jcm14103291","relation":{},"ISSN":["2077-0383"],"issn-type":[{"type":"electronic","value":"2077-0383"}],"subject":[],"published":{"date-parts":[[2025,5,8]]}}}