{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T18:44:16Z","timestamp":1794336256059,"version":"4.9.0"},"reference-count":24,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T00:00:00Z","timestamp":1553644800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T00:00:00Z","timestamp":1553644800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2019,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Due to increased life expectancy and a more active life style of the older people, we hypothesised that the incidence of quadriceps tendon rupture (QTR) is higher than previously reported. The objective of this nationwide population\u2010based study was to investigate the annual incidence of QTR in patients who underwent operative treatment in Finland between 1997 and 2014.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The Finnish National Hospital Discharge Register was searched for all adult patients who had undergone surgical treatment for QTR during the study period. Population\u2010based annual incidence and incidence trends for surgically treated QTR were calculated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>During the study period, 1343 QTR surgeries were performed. Of these, 90% were performed on male patients. The incidence of QTR increased by 411% from 0.55 to 2.82 per 100,000 person\u2010years from 1997 to 2014. The average yearly increase in the number of surgeries was 9.0%. In male patients, the incidence of QTR increased by 490% and in female patients by 121%. The mean age of the male patients increased during the study period from 50 to 59 years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Based on the data from the Finnish National Hospital Discharge Register, the annual incidence of QTR increased by over 400% during the 18\u2010year study period. The average age of the patients also increased. Because QTR is only very rarely treated without surgery, the results of our study can be considered to be a reliable estimate of the increase in the incidence of this condition. There is an urgent need to establish the risk factors associated with QTR and to also establish the optimal surgical technique.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>IV.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-019-05453-y","type":"journal-article","created":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T16:14:17Z","timestamp":1553703257000},"page":"3644-3649","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["The increasing incidence of surgically treated quadriceps tendon ruptures"],"prefix":"10.1002","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6903-6461","authenticated-orcid":false,"given":"Aleksi","family":"Reito","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Central Finland Central Hospital Keskussairaalantie 19 40620 Jyvaskyla Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juha","family":"Paloneva","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Central Finland Central Hospital Keskussairaalantie 19 40620 Jyvaskyla Finland"},{"name":"<!--<label>2<\/label>--> Institute of Clinical Medicine University of Eastern Finland Yliopistonranta 1 70210 Kuopio Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ville M.","family":"Mattila","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Department of Orthopaedics, Unit of Musculoskeletal Surgery Tampere University Hospital Teiskontie 35 33521 Tampere Finland"},{"name":"<!--<label>4<\/label>--> School of Medicine University of Tampere 33014 Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antti P.","family":"Launonen","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Department of Orthopaedics, Unit of Musculoskeletal Surgery Tampere University Hospital Teiskontie 35 33521 Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,3,27]]},"reference":[{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.1097\/00005768\u2010200208000\u201000011"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.3113\/FAI.2008.0498"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1093\/eurpub\/ckm092"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2017.12.002"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2012.08.044"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2008.06.021"},{"key":"e_1_2_10_8_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.D.01910"},{"key":"e_1_2_10_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010015\u20103544\u20105"},{"key":"e_1_2_10_10_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.O.00113"},{"key":"e_1_2_10_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0020\u20101383(98)00147\u20108"},{"key":"e_1_2_10_12_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546514540599"},{"key":"e_1_2_10_13_2","doi-asserted-by":"publisher","DOI":"10.1177\/1457496915598761"},{"key":"e_1_2_10_14_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546515587738"},{"key":"e_1_2_10_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/sms.12824"},{"key":"e_1_2_10_16_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264\u2010012\u20101637\u2010z"},{"key":"e_1_2_10_17_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102013\u2010092756"},{"key":"e_1_2_10_18_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010017\u20104626\u20103"},{"key":"e_1_2_10_19_2","unstructured":"National Institute of Health and Welfare Finnish Arthroplasty Register.ENDOnet.https:\/\/thl.fi\/far\/#index. Accessed 9 Oct 2018"},{"key":"e_1_2_10_20_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12891\u2010015\u20100639\u20106"},{"key":"e_1_2_10_21_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086\u2010200211000\u201000042"},{"key":"e_1_2_10_22_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2017.10.013"},{"key":"e_1_2_10_23_2","volume-title":"FinDM II. On the register\u2010based measurement of the prevalence and incidence of diabetes and its long\u2010term complications","author":"Sund R","year":"2009"},{"key":"e_1_2_10_24_2","doi-asserted-by":"publisher","DOI":"10.1097\/BOT.0b013e31824a3bb5"},{"key":"e_1_2_10_25_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010009\u20100884\u2010z"}],"container-title":["Knee Surgery, Sports Traumatology, Arthroscopy"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-019-05453-y.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/s00167-019-05453-y\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s00167-019-05453-y.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s00167-019-05453-y","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T10:57:27Z","timestamp":1760871447000},"score":1,"resource":{"primary":{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/10.1007\/s00167-019-05453-y"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,3,27]]},"references-count":24,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2019,11]]}},"alternative-id":["10.1007\/s00167-019-05453-y"],"URL":"https:\/\/doi.org\/10.1007\/s00167-019-05453-y","archive":["Portico"],"relation":{},"ISSN":["0942-2056","1433-7347"],"issn-type":[{"value":"0942-2056","type":"print"},{"value":"1433-7347","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,3,27]]},"assertion":[{"value":"11 October 2018","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"27 February 2019","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"27 March 2019","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":"None of the authors have anything to disclose.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"Ethical approval for this study was granted by the Finnish National Institute of Health and Wellness (Dnr THL\/89\/5.05.00\/2012, dated January 18, 2012)","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}