{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T23:20:37Z","timestamp":1787008837214,"version":"build-2736575974"},"reference-count":34,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2021,7,31]],"date-time":"2021-07-31T00:00:00Z","timestamp":1627689600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,1,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Chronic wounds, including leg ulcers, constitute an important medical problem among older patients. Dystrophic calcifications (DC) are associated with a variety of disorders, including leg ulcers. The aim of this study was to report the clinical and biological characteristics of older patients with DC in leg ulcers and to determine the morphology and chemical composition of these calcifications. We conducted a prospective monocentric study in our Geriatric-Wound and Healing ward, Rothschild Hospital, Paris, from January 2018 to December 2019. Patients with leg ulcers were screened for DC by palpation. Patients\u2019 clinical, biological, and radiological findings were collected. DC morphology was analyzed using field-emission scanning electron microscopy and chemical composition was analyzed using \u00b5Fourier transform infra-red spectroscopy and X-ray Fluorescence. Ten (7%) of the 143 patients hospitalized for leg ulcers presented DC. Older patients with DC were more likely to have leg ulcers with venous insufficiency (p = .015), colonized by Pseudomonas aeruginosa (p = .026), with a longer healing evolution (p = .0072) and hypercalcemia (p = .041). Five DC were extracted from ulcers: 2 presented 500 nm lacunar spheres and intermingled fibrils of about 10 nm in diameter, consistent with bacterial and biofilm imprints. DC were always composed of calcium\u2013phosphate apatite and associated to the presence of zinc. Our analyses were consistent with the involvement of microorganisms and inflammatory process in DC formation. Early management of venous insufficiency, treatment of chronic bacterial colonization and use of calcium-solubilizing drugs seem to be rational strategies for calcified leg ulcer management in older patients.<\/jats:p>","DOI":"10.1093\/gerona\/glab223","type":"journal-article","created":{"date-parts":[[2021,7,31]],"date-time":"2021-07-31T09:21:32Z","timestamp":1627723292000},"page":"27-32","source":"Crossref","is-referenced-by-count":7,"title":["Calcified Leg Ulcers in Older Patients: Clinical Description, Morphology, and Chemical Characterization"],"prefix":"10.1093","volume":"77","author":[{"given":"Hester","family":"Colboc","sequence":"first","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Rothschild, Service Plaies et Cicatrisation, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juliette","family":"Fontaine","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Rothschild, Service Plaies et 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France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michel","family":"Daudon","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Tenon, Service des Explorations Fonctionnelles Multidisciplinaires, Paris, France"},{"name":"UMR_S 1155, Sorbonne Universit\u00e9-UPMC Paris 06, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naomi","family":"Laporte","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Rothschild, Service Plaies et Cicatrisation, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"St\u00e9phan","family":"Rouzi\u00e8re","sequence":"additional","affiliation":[{"name":"Laboratoire de Physique des Solides, CNRS, Universit\u00e9 Paris-Saclay, Orsay, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Reby","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Rothschild, Service Plaies et Cicatrisation, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Agnes","family":"Galezowski","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Rothschild, Service Plaies et Cicatrisation, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine","family":"Forasassi","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Rothschild, Service Plaies et Cicatrisation, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sylvie","family":"Meaume","sequence":"additional","affiliation":[{"name":"Sorbonne Universit\u00e9, H\u00f4pital Rothschild, Service Plaies et Cicatrisation, Paris, 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