{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T08:29:34Z","timestamp":1793953774771,"version":"4.8.0"},"reference-count":32,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T00:00:00Z","timestamp":1778025600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T00:00:00Z","timestamp":1778025600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"Deutsche Arthrosehilfe","award":["P557-A284_Horas\/Heinz\/Rudert"],"award-info":[{"award-number":["P557-A284_Horas\/Heinz\/Rudert"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["HIP International"],"published-print":{"date-parts":[[2026,11]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Hypovitaminosis D is widespread in orthopaedic patients and may influence outcomes following joint arthroplasty. However, data specifically addressing vitamin D status in patients undergoing primary total hip arthroplasty (THA) remain limited. This study aimed to determine the prevalence of hypovitaminosis D and identify associated risk factors in a large German THA cohort.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>\n                      In this prospective single-centre study, 679 consecutive patients scheduled for primary THA due to osteoarthritis were evaluated over a 12-month period. Preoperative serum 25-hydroxyvitamin D (25[OH]D), parathyroid hormone, and calcium levels were measured. Vitamin D status was categorised as deficiency (\u2a7d19\u2009ng\/mL), insufficiency (20\u201329\u2009ng\/mL), or sufficiency (\u2a7e30\u2009ng\/mL). Associations between vitamin D status and demographic, clinical, and seasonal variables were analysed using \u03c7\n                      <jats:sup>2<\/jats:sup>\n                      tests, ANOVA, and multivariable linear and logistic regression models.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      The mean serum 25(OH)D level was 26.0\u2009\u00b1\u200913.2\u2009ng\/mL, and hypovitaminosis D was present in 66,3% of patients (33.9% deficiency, 32.4% insufficiency). Season of sampling showed no significant influence on vitamin D levels. In multivariable analysis, preoperative vitamin D supplementation was the strongest positive predictor of higher 25(OH)D levels (B\u2009=\u2009+16.1\u2009ng\/mL;\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009&lt;\u20090.001), while higher BMI category (B\u2009=\u2009\u22121.64\u2009ng\/mL per category;\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009&lt;\u20090.001) and male sex (B\u2009=\u2009\u22122.45\u2009ng\/mL;\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.010) were independently associated with lower levels. Logistic regression confirmed reduced odds of vitamin D sufficiency among men (OR 0.59;\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.007) and with increasing BMI category (OR 0.74;\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.002). Vitamin D status was not associated with smoking, comorbidity burden, season, or functional scores (WOMAC, EuroQol).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Hypovitaminosis D is highly prevalent in German patients undergoing primary THA, independent of season. Obesity and male sex are significant risk factors, whereas supplementation is strongly protective. Routine preoperative assessment and targeted optimisation of vitamin D levels, particularly in high-risk subgroups, may represent a simple, cost-effective component of arthroplasty prehabilitation. Further research is needed to determine whether correcting vitamin D deficiency translates to improved postoperative outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/11207000261437108","type":"journal-article","created":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T05:14:51Z","timestamp":1778130891000},"page":"881-890","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Prevalence and associated risk factors for hypovitaminosis D in patients scheduled for primary total hip arthroplasty in Germany"],"prefix":"10.1177","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-0142-272X","authenticated-orcid":false,"given":"Jan","family":"Oberfeld","sequence":"first","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa","family":"Wiederhold","sequence":"additional","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miledi","family":"Hoxha","sequence":"additional","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tizian","family":"Heinz","sequence":"additional","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maximilian","family":"Rudert","sequence":"additional","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felix","family":"Hochberger","sequence":"additional","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel","family":"Weissenberger","sequence":"additional","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Konstantin","family":"Horas","sequence":"additional","affiliation":[{"name":"Orthopedic Clinic K\u00f6nig-Ludwig-Haus, W\u00fcrzburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,5,6]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.RVW.23.00150"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2024.05.012"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(89)91789-3"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.2337\/dc06-1994"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.53.8.1711"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00198-009-0954-6"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.HYP.30.2.150"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.3390\/nu16111666"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1210\/endrev\/bnae009"},{"key":"e_1_3_2_11_2","volume-title":"Vitamin D","author":"Chauhan KM","year":"2023","unstructured":"Chauhan KM, Shahrokhi M, Huecker MR. Vitamin D. Treasure Island, FL: Stat Pearls, 2023."},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra070553"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1080\/10408398.2012.688897"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-014-2519-3"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.3899\/jrheum.170990"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.1007\/s40520-022-02279-6"},{"key":"e_1_3_2_17_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-010-1186-2"},{"key":"e_1_3_2_18_2","doi-asserted-by":"publisher","DOI":"10.21037\/atm.2018.08.21"},{"key":"e_1_3_2_19_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.97B1.34558"},{"key":"e_1_3_2_20_2","doi-asserted-by":"publisher","DOI":"10.1093\/bmb\/ldaa018"},{"key":"e_1_3_2_21_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-016-4209-8"},{"key":"e_1_3_2_22_2","doi-asserted-by":"publisher","DOI":"10.1308\/rcsann.2013.95.8.569"},{"key":"e_1_3_2_23_2","doi-asserted-by":"publisher","DOI":"10.4055\/cios.2016.8.2.153"},{"key":"e_1_3_2_24_2","doi-asserted-by":"publisher","DOI":"10.1210\/jc.2011-0385"},{"key":"e_1_3_2_25_2","first-page":"521","article-title":"Effect of vitamin D on Joint replacement outcomes","volume":"65","author":"Ginnetti M","year":"2016","unstructured":"Ginnetti M, El-Othmani MM, Wright E, et al. Effect of vitamin D on Joint replacement outcomes. Instr Course Lect 2016; 65: 521\u2013530.","journal-title":"Instr Course Lect"},{"key":"e_1_3_2_26_2","doi-asserted-by":"publisher","DOI":"10.2147\/PROM.S261251"},{"key":"e_1_3_2_27_2","first-page":"664","article-title":"Vitamin D deficiency is associated with longer hospital stay and lower functional outcome after total knee arthroplasty","volume":"83","author":"Jansen JA","year":"2017","unstructured":"Jansen JA, Tahmassebi J, Haddad FS. Vitamin D deficiency is associated with longer hospital stay and lower functional outcome after total knee arthroplasty. Acta Orthop Belg 2017; 83: 664\u2013670.","journal-title":"Acta Orthop Belg"},{"key":"e_1_3_2_28_2","doi-asserted-by":"publisher","DOI":"10.3945\/ajcn.115.120873"},{"key":"e_1_3_2_29_2","doi-asserted-by":"publisher","DOI":"10.11622\/smedj.2021036"},{"key":"e_1_3_2_30_2","doi-asserted-by":"publisher","DOI":"10.3390\/nu16233991"},{"key":"e_1_3_2_31_2","doi-asserted-by":"publisher","DOI":"10.3390\/nu17162635"},{"key":"e_1_3_2_32_2","doi-asserted-by":"publisher","DOI":"10.12997\/jla.2021.10.2.130"},{"key":"e_1_3_2_33_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2021.12.006"}],"container-title":["HIP International"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11207000261437108","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/11207000261437108","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11207000261437108","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T08:16:42Z","timestamp":1793953002000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/11207000261437108"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5,6]]},"references-count":32,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2026,11]]}},"alternative-id":["10.1177\/11207000261437108"],"URL":"https:\/\/doi.org\/10.1177\/11207000261437108","relation":{},"ISSN":["1120-7000","1724-6067"],"issn-type":[{"value":"1120-7000","type":"print"},{"value":"1724-6067","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,5,6]]}}}