{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T14:15:22Z","timestamp":1792505722585,"version":"4.5.0"},"reference-count":39,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2020,4,8]],"date-time":"2020-04-08T00:00:00Z","timestamp":1586304000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2020,4,8]],"date-time":"2020-04-08T00:00:00Z","timestamp":1586304000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2020,4,8]],"date-time":"2020-04-08T00:00:00Z","timestamp":1586304000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100011594","name":"Sophies Minde Ortopedi","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100011594","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100011594","name":"Sophies Minde Ortopedi","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100011594","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2021,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To study the incidence of acromioclavicular joint injuries in a general population.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>All acute shoulder injuries admitted to an orthopaedic emergency department were registered prospectively, using electronic patient records and a patient\u2010reported questionnaire. The regional area was the city of Oslo with 632,990\u00a0inhabitants. Patients with symptoms from the acromioclavicular joint without fracture were registered as a dislocation (type II\u2013VI) if the radiologist described widening of the joint space or coracoclavicular distance on standard anteroposterior radiographs. Patients without such findings were diagnosed as sprains (type I).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Acromioclavicular joint injuries constituted 11% of all shoulder injuries (287 of 2650). The incidence was 45 per 10<jats:sup>5<\/jats:sup> person\u2010years (95% confidence interval [CI] 40\u201351). 196 (68%) were diagnosed as sprains and 91 (32%) as dislocations. Median age of all acromioclavicular joint injuries was 32 years (interquartile range 24\u201344), and 82% were men. Thirty percent of all acromioclavicular joint injuries were registered in men in their twenties. Sports injuries accounted for 53%, compared to 27% in other shoulder injuries [OR 3.1 (95% CI 2.4\u20134.0; <jats:italic>p<\/jats:italic> &lt; 0.001)]. The most common sports associated with acromioclavicular joint injuries were football (24%), cycling (16%), martial arts (11%), alpine skiing and snowboarding (both 9%), and ice hockey (6%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our study suggests that in the general population, one in ten shoulder injuries involves the acromioclavicular joint and young men in sports are at highest risk. A prognostic level II cohort study.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-020-05958-x","type":"journal-article","created":{"date-parts":[[2020,4,8]],"date-time":"2020-04-08T06:02:56Z","timestamp":1586325776000},"page":"2039-2045","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["Young men in sports are at highest risk of acromioclavicular joint injuries: a prospective cohort study"],"prefix":"10.1002","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8172-913X","authenticated-orcid":false,"given":"Stein Arve","family":"Skjaker","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Division of Orthopaedic Surgery Oslo University Hospital Pb 4950 Nydalen 0424 Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martine","family":"Enger","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Division of Orthopaedic Surgery Oslo University Hospital Pb 4950 Nydalen 0424 Oslo Norway"},{"name":"<!--<label>2<\/label>--> Institute of Clinical Medicine University of Oslo Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lars","family":"Engebretsen","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Division of Orthopaedic Surgery Oslo University Hospital Pb 4950 Nydalen 0424 Oslo Norway"},{"name":"<!--<label>2<\/label>--> Institute of Clinical Medicine University of Oslo Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jens Ivar","family":"Brox","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Institute of Clinical Medicine University of Oslo Oslo Norway"},{"name":"<!--<label>3<\/label>--> Department of Physical Medicine and Rehabilitation Oslo University Hospital Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Berte","family":"B\u00f8e","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Division of Orthopaedic Surgery Oslo University Hospital Pb 4950 Nydalen 0424 Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,4,8]]},"reference":[{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623\u2010196749040\u201000024"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010016\u20104203\u20101"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.rcl.2019.02.013"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2013.11.005"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102014\u2010093718"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1136\/emj.2002.002873"},{"key":"e_1_2_10_8_2","doi-asserted-by":"publisher","DOI":"10.1155\/2013\/171609"},{"key":"e_1_2_10_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jse.2014.02.005"},{"key":"e_1_2_10_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2008.06.021"},{"key":"e_1_2_10_11_2","doi-asserted-by":"publisher","DOI":"10.1136\/ip.9.2.117"},{"key":"e_1_2_10_12_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.pu.16.050195.002121"},{"key":"e_1_2_10_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2018.05.013"},{"key":"e_1_2_10_14_2","doi-asserted-by":"publisher","DOI":"10.1136\/bmjsem\u20102019\u2010000551"},{"key":"e_1_2_10_15_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546504267349"},{"key":"e_1_2_10_16_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.34.5.348"},{"key":"e_1_2_10_17_2","doi-asserted-by":"crossref","unstructured":"GoodmanAD RaduchaJE DeFrodaSF GilJA OwensBDShoulder and elbow injuries in NCAA football players 2009\u20102010 through 2013\u20102014.Phys Sportsmed(2018)10.1080\/00913847.155416730513039","DOI":"10.1080\/00913847.2018.1554167"},{"key":"e_1_2_10_18_2","volume-title":"Orthopedic imaging: a practical approach","author":"Greenspan ABJ","year":"2015"},{"key":"e_1_2_10_19_2","doi-asserted-by":"publisher","DOI":"10.1097\/TA.0b013e31825a787f"},{"key":"e_1_2_10_20_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546507300691"},{"key":"e_1_2_10_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2013.01.043"},{"key":"e_1_2_10_22_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100838.2011.01300.x"},{"key":"e_1_2_10_23_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00198\u2010007\u20100499\u20105"},{"key":"e_1_2_10_24_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546513504284"},{"key":"e_1_2_10_25_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546518781338"},{"key":"e_1_2_10_26_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010018\u20105205\u2010y"},{"key":"e_1_2_10_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1058\u20102746(05)80063\u20101"},{"key":"e_1_2_10_28_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546512450162"},{"key":"e_1_2_10_29_2","doi-asserted-by":"publisher","DOI":"10.1177\/1941738113487165"},{"key":"e_1_2_10_30_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12891\u2010017\u20101864\u2010y"},{"key":"e_1_2_10_31_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jse.2017.09.021"},{"key":"e_1_2_10_32_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.csm.2008.06.006"},{"key":"e_1_2_10_33_2","first-page":"860","volume-title":"Fractures in adults","author":"Rockwood CA","year":"1984"},{"key":"e_1_2_10_34_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010018\u20105089\u2010x"},{"key":"e_1_2_10_35_2","unstructured":"Statistics Norway.https:\/\/www.ssb.no\/en\/statbank"},{"key":"e_1_2_10_36_2","doi-asserted-by":"publisher","DOI":"10.1097\/JSM.0b013e3181e71e71"},{"key":"e_1_2_10_37_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010019\u201005674\u20101"},{"key":"e_1_2_10_38_2","doi-asserted-by":"crossref","first-page":"111","DOI":"10.1097\/00003086-196300280-00012","article-title":"Acromioclavicular separations: useful and practical classification for treatment","volume":"28","author":"Tossy JD","year":"1963","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_2_10_39_2","doi-asserted-by":"publisher","DOI":"10.1177\/2325967118756826"},{"key":"e_1_2_10_40_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010019\u201005528\u2010w"}],"container-title":["Knee Surgery, Sports Traumatology, Arthroscopy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-020-05958-x.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00167-020-05958-x\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-020-05958-x.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s00167-020-05958-x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T12:30:25Z","timestamp":1760877025000},"score":1,"resource":{"primary":{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/10.1007\/s00167-020-05958-x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,8]]},"references-count":39,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2021,7]]}},"alternative-id":["10.1007\/s00167-020-05958-x"],"URL":"https:\/\/doi.org\/10.1007\/s00167-020-05958-x","archive":["Portico"],"relation":{},"ISSN":["0942-2056","1433-7347"],"issn-type":[{"value":"0942-2056","type":"print"},{"value":"1433-7347","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,4,8]]},"assertion":[{"value":"31 October 2019","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"23 March 2020","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"8 April 2020","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Compliance with ethical standards"}},{"value":"The authors declare that they have no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"In accordance with Norwegian legal procedures, the study was approved as an internal audit project by the Data Protection Officer of Oslo University Hospital, and performed in accordance with the revised Helsinki declaration.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Written consent was not necessary for this study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}