{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T22:31:47Z","timestamp":1774305107922,"version":"3.50.1"},"reference-count":35,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2025,3,25]],"date-time":"2025-03-25T00:00:00Z","timestamp":1742860800000},"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: Limited data exist regarding the influence of total hip arthroplasty (THA) on the alignment of the lower limb. Therefore, the objective of this study was to investigate potential alterations in lower limb alignment (LLA) following total hip arthroplasty, with a focus on the comparison of two different short-stem implant designs. Methods: This retrospective study compares pre- and postoperative hip\u2013knee\u2013ankle angle (HKA), femoral offset, and leg length data of 115 consecutive hips with two different implant types (Mathys Optimys\u00ae stem and Implantec Alpha proxy\u00ae stem). Results: There was not a significant difference between the pre- and postoperative HKA angles regarding the entire study population (p = 0.293), nor after comparing the two short-stem implant designs (p = 0.433). Hip offset almost remained unchanged in the entire study cohort (p = 0.662), as well as when comparing the two short-stem implant designs (p = 0.206). Conclusions: Modern short-stem THA does not significantly affect overall LLA.<\/jats:p>","DOI":"10.3390\/jcm14072240","type":"journal-article","created":{"date-parts":[[2025,3,25]],"date-time":"2025-03-25T12:18:52Z","timestamp":1742905132000},"page":"2240","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Does the Implantation of a Short-Stem Hip Prosthesis Change the Lower Limb Alignment?\u2014Comparison of Two Modern Short-Stem Designs"],"prefix":"10.3390","volume":"14","author":[{"given":"Robert","family":"Rus","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery and Traumatology, Evangelisches Krankenhaus, 1180 Vienna, Austria"},{"name":"Clinic for Orthopaedics Paulinenhilfe, Diakonie-Klinikum Stuttgart, 70176 Stuttgart, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4981-8607","authenticated-orcid":false,"given":"Maximilian F.","family":"Kasparek","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery and Traumatology, Evangelisches Krankenhaus, 1180 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Valerie","family":"Ladstaetter","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Tauma Surgery, Medical University of Vienna, Vienna General Hospital, Waehringer Guertel 18-20, 1090 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-6282-5935","authenticated-orcid":false,"given":"Tobias","family":"Scheidl","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery and Traumatology, Evangelisches Krankenhaus, 1180 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-2241-4645","authenticated-orcid":false,"given":"Oliver","family":"Haider","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery and Traumatology, Evangelisches Krankenhaus, 1180 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maximilian","family":"Muellner","sequence":"additional","affiliation":[{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Universit\u00e4tsmedizin Berlin, Klinik f\u00fcr Orthop\u00e4die, Schumannstra\u00dfe 20, 10117 Berlin, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna","family":"Jungwirth-Weinberger","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery and Traumatology, Evangelisches Krankenhaus, 1180 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas","family":"Muellner","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery and Traumatology, Evangelisches Krankenhaus, 1180 Vienna, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1508","DOI":"10.1016\/S0140-6736(07)60457-7","article-title":"The operation of the century: Total hip replacement","volume":"370","author":"Learmonth","year":"2007","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"963","DOI":"10.2106\/00004623-200405000-00012","article-title":"Health-related quality of life in total hip and total knee arthroplasty. 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