{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,26]],"date-time":"2026-07-26T12:02:44Z","timestamp":1785067364002,"version":"3.55.0"},"reference-count":25,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T00:00:00Z","timestamp":1784764800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"CoULD Registry"},{"DOI":"10.13039\/100016868","name":"university of minnesota foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100016868","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100027714","name":"gillette children\u2019s","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100027714","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Hand Surg Eur Vol"],"abstract":"<jats:sec>\n                    <jats:title>Introduction:<\/jats:title>\n                    <jats:p>This study aims to explore the types of surgeries performed for radial polydactyly, complications and their associations with Wassel\u2013Flatt classification types using a multi-centre prospective paediatric hand surgery registry.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Patients with radial polydactyly in the Congenital Upper Limb Differences (CoULD) Registry who underwent surgery were reviewed for Wassel\u2013Flatt classification, types of surgeries performed and complications.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>A total of 247 extremities with radial polydactyly in 230 patients underwent surgical treatment at an average age of 1.4\u2009years (ranging from 24\u2009days to 8.4\u2009years) for the index operation. The most common primary procedure was excision of the radial thumb with reconstruction of the dominant ulnar thumb (87%), followed by simple excision (7%). Thumbs classified as the hypoplastic subtype were more likely to undergo simple excision. The most common ancillary procedure was ligament reconstruction. Fifteen patients (7%) experienced 17 total complications including five thumbs requiring revision at an average of 3.6\u2009years (range 2.5\u20134.3\u2009years) after the first surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Excision of the radial thumb with reconstruction of the ulnar thumb is the most common procedure for patients undergoing surgical treatment for radial polydactyly, followed by simple excision of a hypoplastic polydactylous digit. Surgical complication rates for radial polydactyly surgery are low (7%) with a 2% reoperation rate at the 3\u2009year follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>IV<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/17531934261459878","type":"journal-article","created":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T08:16:58Z","timestamp":1784794618000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Surgical treatment of radial polydactyly: a review of the Congenital Upper Limb Differences (CoULD) registry"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2540-1698","authenticated-orcid":false,"given":"Anna K","family":"Holten","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8064-5508","authenticated-orcid":false,"given":"Ann E","family":"Van Heest","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN, USA"},{"name":"Gillette Children\u2019s Specialty Healthcare, Saint Paul, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7709-3098","authenticated-orcid":false,"given":"Andrea S","family":"Bauer","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Boston Children\u2019s Hospital, Boston, MA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9672-8853","authenticated-orcid":false,"given":"Charles A","family":"Goldfarb","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suzanne E","family":"Steinman","sequence":"additional","affiliation":[{"name":"Department of Orthopedics and Sports Medicine, Seattle Children\u2019s Hospital, Seattle, WA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7620-6951","authenticated-orcid":false,"given":"Caroline H","family":"Hu","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN, USA"},{"name":"Gillette Children\u2019s Specialty Healthcare, Saint Paul, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"CoULD Study Group","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,7,23]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"crossref","unstructured":"Abzug JM. 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