{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T03:07:44Z","timestamp":1784257664978,"version":"3.55.0"},"reference-count":45,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2022,3,8]],"date-time":"2022-03-08T00:00:00Z","timestamp":1646697600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2022,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Little is known about sensitization to iron (Fe) in private, occupational, and medical settings, particulary implantology.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To investigate sensitization to metals, particularly to Fe, both in pre\u2010implant individuals with presumed metal allergy and in patients with suspected metal implant allergy. To further characterize Fe\u2010sensitized individuals.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Analysis of patch test reactions to an Fe (II) sulfate\u2013containing metal series in 183 consecutive patients (41 pre\u2010implant, 142 metal implant bearers). Test readings were on day (D)2, D3, and D6. Evaluation of questionnaire\u2010aided history of metal reactivity patterns and demographics of Fe reactors.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Metal reactivity in pre\u2010implant\/implant\/total group was: to nickel 39%\/30%\/32%; to cobalt 17%\/15%\/15%; and to chromium 7%\/13%\/11%. Co\u2010sensitizations cobalt\/nickel (19\/58) and cobalt\/chromium (11\/21) were significant at<jats:italic>P<\/jats:italic>\u00a0&lt;\u2009.001; co\u2010sensitizations Fe\/nickel (4\/10) and chromium\/knee arthroplasty (11\/73) at<jats:italic>P<\/jats:italic>\u00a0=\u2009.03. Ten of 183 (5.5%) reacted to Fe (2 of 41 pre\u2010implant patients, 8 of 142 implant bearers), with 10 reacting only on D6. Fe reactivity was highest in complicated knee arthroplasty (7\/73). Further peculiarities of Fe reactors included frequent isolated Fe reactivity (6\/10), occupational metal exposure (7\/10), previous (par)enteral Fe substitution (6\/10).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The 5.5% prevalence of Fe reactions suggests a potentially underestimated role of this metal allergen in general and in implant bearers. The latter also shows a distinct metal sensitization pattern.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cod.14074","type":"journal-article","created":{"date-parts":[[2022,2,16]],"date-time":"2022-02-16T17:29:45Z","timestamp":1645032585000},"page":"531-538","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Contact sensitization to iron: A potentially underestimated metal allergen and elicitor of complications in patients with metal implants"],"prefix":"10.1111","volume":"86","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8412-2667","authenticated-orcid":false,"given":"Eva","family":"Oppel","sequence":"first","affiliation":[{"name":"Clinic for Dermatology and Allergology Ludwig\u2010Maximilians\u2010University Munich Munich Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Florian","family":"Kapp","sequence":"additional","affiliation":[{"name":"Clinic for Dermatology and Allergology 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