{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T23:26:25Z","timestamp":1792452385085,"version":"4.5.0"},"reference-count":12,"publisher":"SAGE Publications","issue":"11","license":[{"start":{"date-parts":[[2025,6,12]],"date-time":"2025-06-12T00:00:00Z","timestamp":1749686400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Hand Surg Eur Vol"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:p>We have described and validated the concentric circles method for assessing anterior subluxation in the bony mallet finger. We retrospectively analysed 114 radiographs from cases of bony mallet finger assessed by four hand surgeons and one radiologist using three approaches: subjective visual inspection, the concentric circles method and the malalignment method. The concentric circles method defines subluxation as a disruption of the normal concentric annulus between the middle phalangeal head and distal phalangeal articular surface on true lateral radiographs. It showed improved accuracy (94%), higher sensitivity (91%) and specificity (97%) compared with the other methods, with excellent inter- and intra-observer reliabilities.<\/jats:p>\n                  <jats:p>\n                    <jats:bold>Level of evidence:<\/jats:bold>\n                    III\n                  <\/jats:p>","DOI":"10.1177\/17531934251348121","type":"journal-article","created":{"date-parts":[[2025,6,12]],"date-time":"2025-06-12T04:47:19Z","timestamp":1749703639000},"page":"1516-1522","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["The concentric circles method to define and assess anterior subluxation in bony mallet finger"],"prefix":"10.1177","volume":"50","author":[{"given":"Seung Hoo","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yeun Soo","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Moran Seoul-Tong Orthopaedic Clinic, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8335-9331","authenticated-orcid":false,"given":"Min Bom","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Seoul National University Hospital, Seoul National University College of Medicine, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soo Min","family":"Cha","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Regional Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Chungnam National University School of Medicine, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyo-Jin","family":"Kang","sequence":"additional","affiliation":[{"name":"Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, South Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Young Ho","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Seoul National University Hospital, Seoul National University College of Medicine, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yun Ki","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Regional Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Chungnam National University School of Medicine, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyung-Jin","family":"Chung","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2025,6,12]]},"reference":[{"key":"e_1_3_11_2_1","doi-asserted-by":"publisher","DOI":"10.1037\/h0031619"},{"key":"e_1_3_11_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/1753193416647307"},{"key":"e_1_3_11_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hansur.2020.08.008"},{"key":"e_1_3_11_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhsa.2007.09.006"},{"key":"e_1_3_11_6_1","doi-asserted-by":"publisher","DOI":"10.2307\/2529310"},{"key":"e_1_3_11_7_1","volume-title":"Geometric Constructions","author":"Martin GE.","year":"2012","unstructured":"Martin GE. 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