{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T21:49:08Z","timestamp":1791236948083,"version":"4.1.0"},"reference-count":15,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,6,8]],"date-time":"2025-06-08T00:00:00Z","timestamp":1749340800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,6,8]],"date-time":"2025-06-08T00:00:00Z","timestamp":1749340800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/100012921","name":"Royal College of Surgeons in Ireland","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100012921","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur J Orthop Surg Traumatol"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>This study investigates the claim that the majority of elderly patients undergoing elective total hip arthroplasty (THA) that would routinely be treated with a collared cementless stem are just one fall away from a neck of femur fracture that would then commit them to a cemented femoral prosthesis in many other institutions. This study aims to compare the incidence of intra-operative periprosthetic fracture (PPF) and early postoperative PPF using a cementless collared femoral stem between 500 consecutive elective total hip arthroplasty (THA) patients and 500 consecutive neck of femur (NOF) fracture patients treated with a hemiarthroplasty.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This was a single-institution retrospective cohort study between August 2015 and December 2023 assessing 500 consecutive NOF fractures and 500 consecutive elective THAs treated with a single brand of collared cementless femoral stem. The primary outcome measure was intra-operative PPF. Secondary outcome measures included early PPF, defined as PPF within 90 days of initial surgery and 90-day mortality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The mean age in the THA group was 66 (range 32\u201394) with 246\/500 (49.2%) patients being female. In the NOF group, the mean age was 80 (range 45\u2013102) with 350\/500 (70%) of patients being female. In the THA group, seven (1.4%) of patients sustained an intra-operative fracture compared with 15 (3%) patients in the NOF group (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.09). There were three (0.6%) early PPFs in the elective group compared to four (0.8%) in the NOF group (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.7). The 90-day mortality was zero in the elective group and 8.8% in the NOF group. None of the NOF patients with an intra-operative fracture died at the time of follow-up.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Collared cementless femoral stems are safe for use in hemiarthroplasty for hip fracture, especially in an institution that performs cementless HA as standard practice for all hip fractures requiring hemiarthroplasty.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00590-025-04358-6","type":"journal-article","created":{"date-parts":[[2025,6,8]],"date-time":"2025-06-08T05:46:56Z","timestamp":1749361616000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["1000 collared cementless femoral stems: periprosthetic fracture rates in 500 THA versus 500 hemiarthroplasties"],"prefix":"10.1007","volume":"35","author":[{"given":"Brian","family":"Rigney","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evelyn P.","family":"Murphy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meadhbh Ni Mhiochain","family":"De Grae","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher","family":"Fenelon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen R.","family":"Kearns","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fintan","family":"Shannon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Colin G.","family":"Murphy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerard A.","family":"Sheridan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,6,8]]},"reference":[{"issue":"4","key":"4358_CR1","doi-asserted-by":"publisher","first-page":"461","DOI":"10.1302\/0301-620x.98b4.37201","volume":"98-B","author":"MP Abdel","year":"2016","unstructured":"Abdel MP, Watts CD, Houdek MT, Lewallen DG, Berry DJ (2016) Epidemiology of periprosthetic fracture of the femur in 32\u00a0644 primary total hip arthroplasties. 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