{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T22:25:38Z","timestamp":1767651938903,"version":"3.37.3"},"reference-count":39,"publisher":"Springer Science and Business Media LLC","issue":"6","license":[{"start":{"date-parts":[[2021,1,4]],"date-time":"2021-01-04T00:00:00Z","timestamp":1609718400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,1,4]],"date-time":"2021-01-04T00:00:00Z","timestamp":1609718400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"funder":[{"DOI":"10.13039\/501100001702","name":"AO Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001702","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur J Orthop Surg Traumatol"],"published-print":{"date-parts":[[2021,8]]},"DOI":"10.1007\/s00590-020-02841-w","type":"journal-article","created":{"date-parts":[[2021,1,4]],"date-time":"2021-01-04T14:03:47Z","timestamp":1609769027000},"page":"1105-1112","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Predicting reoperation after operative treatment of proximal humerus fractures"],"prefix":"10.1007","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8313-5987","authenticated-orcid":false,"given":"Kyong S.","family":"Min","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bethany","family":"Sheridan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Greg R.","family":"Waryasz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexander","family":"Joeris","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jon J. P.","family":"Warner","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Ring","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Neal","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,1,4]]},"reference":[{"issue":"1","key":"2841_CR1","doi-asserted-by":"publisher","first-page":"54","DOI":"10.1097\/BOT.0000000000000229","volume":"29","author":"AK Gupta","year":"2015","unstructured":"Gupta AK, Harris JD, Erickson BJ, Abrams GD, Bruce B, McCormick F, Nicholson GP, Romeo AA (2015) Surgical management of complex proximal humerus fractures-a systematic review of 92 studies including 4500 patients. J Orthop Trauma 29(1):54\u201359. https:\/\/doi.org\/10.1097\/BOT.0000000000000229","journal-title":"J Orthop Trauma"},{"issue":"2","key":"2841_CR2","doi-asserted-by":"publisher","first-page":"107","DOI":"10.1016\/S1058-2746(05)80063-1","volume":"4","author":"A Nordqvist","year":"1995","unstructured":"Nordqvist A, Petersson CJ (1995) Incidence and causes of shoulder girdle injuries in an urban population. J Shoulder Elbow Surg 4(2):107\u2013112","journal-title":"J Shoulder Elbow Surg"},{"issue":"4","key":"2841_CR3","doi-asserted-by":"publisher","first-page":"542","DOI":"10.1016\/j.jse.2012.06.008","volume":"22","author":"B Jost","year":"2013","unstructured":"Jost B, Spross C, Grehn H, Gerber C (2013) Locking plate fixation of fractures of the proximal humerus: analysis of complications, revision strategies and outcome. J Shoulder Elbow Surg 22(4):542\u2013549. https:\/\/doi.org\/10.1016\/j.jse.2012.06.008","journal-title":"J Shoulder Elbow Surg"},{"issue":"5","key":"2841_CR4","doi-asserted-by":"publisher","first-page":"349","DOI":"10.1016\/S0020-1383(97)00211-8","volume":"29","author":"K Zyto","year":"1998","unstructured":"Zyto K (1998) Non-operative treatment of comminuted fractures of the proximal humerus in elderly patients. Injury 29(5):349\u2013352","journal-title":"Injury"},{"issue":"2","key":"2841_CR5","doi-asserted-by":"publisher","first-page":"91","DOI":"10.1016\/0020-1383(80)90129-1","volume":"12","author":"PC Clifford","year":"1980","unstructured":"Clifford PC (1980) Fractures of the neck of the humerus: a review of the late results. Injury 12(2):91\u201395","journal-title":"Injury"},{"key":"2841_CR6","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1097\/00003086-198805000-00006","volume":"230","author":"RH Cofield","year":"1988","unstructured":"Cofield RH (1988) Comminuted fractures of the proximal humerus. Clin Orthop Relat Res 230:49\u201357","journal-title":"Clin Orthop Relat Res"},{"issue":"5","key":"2841_CR7","doi-asserted-by":"publisher","first-page":"747","DOI":"10.1016\/j.jse.2010.12.018","volume":"20","author":"P Olerud","year":"2011","unstructured":"Olerud P, Ahrengart L, Ponzer S, Saving J, Tidermark J (2011) Internal fixation versus nonoperative treatment of displaced 3-part proximal humeral fractures in elderly patients: a randomized controlled trial. J Shoulder Elbow Surg 20(5):747\u2013755. https:\/\/doi.org\/10.1016\/j.jse.2010.12.018","journal-title":"J Shoulder Elbow Surg"},{"issue":"3","key":"2841_CR8","doi-asserted-by":"publisher","first-page":"163","DOI":"10.1097\/BOT.0b013e3181920e5b","volume":"23","author":"F Brunner","year":"2009","unstructured":"Brunner F, Sommer C, Bahrs C, Heuwinkel R, Hafner C, Rillmann P, Kohut G, Ekelund A, Muller M, Audig\u00e9 L, Babst R (2009) Open reduction and internal fixation of proximal humerus fractures using a proximal humeral locked plate: a prospective multicenter analysis. J Orthop Trauma 23(3):163\u2013172. https:\/\/doi.org\/10.1097\/BOT.0b013e3181920e5b","journal-title":"J Orthop Trauma"},{"issue":"6","key":"2841_CR9","doi-asserted-by":"publisher","first-page":"287","DOI":"10.1016\/S1058-2746(09)80055-4","volume":"1","author":"F Cuomo","year":"1992","unstructured":"Cuomo F, Flatow EL, Maday MG, Miller SR, McIlveen SJ, Bigliani LU (1992) Open reduction and internal fixation of two- and three-part displaced surgical neck fractures of the proximal humerus. J Shoulder Elbow Surg 1(6):287\u2013295. https:\/\/doi.org\/10.1016\/S1058-2746(09)80055-4","journal-title":"J Shoulder Elbow Surg"},{"issue":"1","key":"2841_CR10","doi-asserted-by":"publisher","first-page":"65","DOI":"10.3928\/0147-7447-19890101-09","volume":"12","author":"FH Savoie","year":"1989","unstructured":"Savoie FH, Geissler WB, Vander Griend RA (1989) Open reduction and internal fixation of three-part fractures of the proximal humerus. Orthopedics 12(1):65\u201370","journal-title":"Orthopedics"},{"issue":"3","key":"2841_CR11","doi-asserted-by":"publisher","first-page":"185","DOI":"10.1097\/BOT.0b013e3180333094","volume":"21","author":"MJ Gardner","year":"2007","unstructured":"Gardner MJ, Weil Y, Barker JU, Kelly BT, Helfet DL, Lorich DG (2007) The importance of medial support in locked plating of proximal humerus fractures. J Orthop Trauma 21(3):185\u2013191. https:\/\/doi.org\/10.1097\/BOT.0b013e3180333094","journal-title":"J Orthop Trauma"},{"issue":"4","key":"2841_CR12","doi-asserted-by":"publisher","first-page":"427","DOI":"10.1016\/S1058274604000795","volume":"13","author":"R Hertel","year":"2004","unstructured":"Hertel R, Hempfing A, Stiehler M, Leunig M (2004) Predictors of humeral head ischemia after intracapsular fracture of the proximal humerus. J Shoulder Elbow Surg 13(4):427\u2013433. https:\/\/doi.org\/10.1016\/S1058274604000795","journal-title":"J Shoulder Elbow Surg"},{"issue":"10","key":"2841_CR13","doi-asserted-by":"publisher","first-page":"1651","DOI":"10.1016\/j.injury.2012.04.015","volume":"43","author":"G Osterhoff","year":"2012","unstructured":"Osterhoff G, Hoch A, Wanner GA, Simmen H-P, Werner CML (2012) Calcar comminution as prognostic factor of clinical outcome after locking plate fixation of proximal humeral fractures. Injury 43(10):1651\u20131656. https:\/\/doi.org\/10.1016\/j.injury.2012.04.015","journal-title":"Injury"},{"key":"2841_CR14","doi-asserted-by":"publisher","first-page":"87","DOI":"10.1097\/01.blo.0000194672.79634.78","volume":"442","author":"M Palvanen","year":"2006","unstructured":"Palvanen M, Kannus P, Niemi S, Parkkari J (2006) Update in the epidemiology of proximal humeral fractures. Clin Orthop Relat Res 442:87\u201392","journal-title":"Clin Orthop Relat Res"},{"issue":"2","key":"2841_CR15","doi-asserted-by":"publisher","first-page":"113","DOI":"10.1097\/BOT.0b013e31819344bf","volume":"23","author":"BD Solberg","year":"2009","unstructured":"Solberg BD, Moon CN, Franco DP, Paiement GD (2009) Locked plating of 3- and 4-part proximal humerus fractures in older patients: The effect of initial fracture pattern on outcome. J Orthop Trauma 23(2):113\u2013119. https:\/\/doi.org\/10.1097\/BOT.0b013e31819344bf","journal-title":"J Orthop Trauma"},{"issue":"7","key":"2841_CR16","doi-asserted-by":"publisher","first-page":"1689","DOI":"10.2106\/JBJS.H.00133","volume":"91","author":"BD Solberg","year":"2009","unstructured":"Solberg BD, Moon CN, Franco DP, Paiement GD (2009) Surgical treatment of three and four-part proximal humeral fractures. J bone joint surg Am 91(7):1689\u20131697. https:\/\/doi.org\/10.2106\/JBJS.H.00133","journal-title":"J bone joint surg Am"},{"issue":"9","key":"2841_CR17","doi-asserted-by":"publisher","first-page":"1566","DOI":"10.1016\/j.jse.2017.02.026","volume":"26","author":"C Spross","year":"2017","unstructured":"Spross C, Zeledon R, Zdravkovic V, Jost B (2017) How bone quality may influence intraoperative and early postoperative problems after angular stable open reduction-internal fixation of proximal humeral fractures. J Shoulder Elbow Surg 26(9):1566\u20131572. https:\/\/doi.org\/10.1016\/j.jse.2017.02.026","journal-title":"J Shoulder Elbow Surg"},{"key":"2841_CR18","first-page":"h3868","volume":"351","author":"M Pavlou","year":"2015","unstructured":"Pavlou M, Ambler G, Seaman SR, Guttmann O, Elliott P, King M, Omar RZ (2015) How to develop a more accurate risk prediction model when there are few events. BMJ (Clinical research ed) 351:h3868","journal-title":"BMJ (Clinical research ed)"},{"issue":"12","key":"2841_CR19","doi-asserted-by":"publisher","first-page":"1503","DOI":"10.1016\/0895-4356(95)00048-8","volume":"48","author":"P Peduzzi","year":"1995","unstructured":"Peduzzi P, Concato J, Feinstein AR, Holford TR (1995) Importance of events per independent variable in proportional hazards regression analysis Accuracy and precision of regression estimates. J clin epidemiol 48(12):1503\u20131510","journal-title":"J clin epidemiol"},{"issue":"19","key":"2841_CR20","doi-asserted-by":"publisher","first-page":"1588","DOI":"10.1212\/01.wnl.0000258542.58725.4c","volume":"68","author":"AS Fleisher","year":"2007","unstructured":"Fleisher AS, Sowell BB, Taylor C, Gamst AC, Petersen RC, Thal LJ (2007) Clinical predictors of progression to Alzheimer disease in amnestic mild cognitive impairment. Neurology 68(19):1588\u20131595. https:\/\/doi.org\/10.1212\/01.wnl.0000258542.58725.4c","journal-title":"Neurology"},{"issue":"11\u201312","key":"2841_CR21","doi-asserted-by":"publisher","first-page":"1150","DOI":"10.1002\/sim.4371","volume":"31","author":"G Ambler","year":"2012","unstructured":"Ambler G, Seaman S, Omar RZ (2012) An evaluation of penalised survival methods for developing prognostic models with rare events. Stat Med 31(11\u201312):1150\u20131161. https:\/\/doi.org\/10.1002\/sim.4371","journal-title":"Stat Med"},{"issue":"1","key":"2841_CR22","doi-asserted-by":"publisher","first-page":"259","DOI":"10.1111\/j.1541-0420.2006.00660.x","volume":"63","author":"S Datta","year":"2007","unstructured":"Datta S, Le-Rademacher J, Datta S (2007) Predicting patient survival from microarray data by accelerated failure time modeling using partial least squares and LASSO. Biometrics 63(1):259\u2013271. https:\/\/doi.org\/10.1111\/j.1541-0420.2006.00660.x","journal-title":"Biometrics"},{"issue":"1","key":"2841_CR23","doi-asserted-by":"publisher","first-page":"31","DOI":"10.1007\/s12021-014-9238-1","volume":"13","author":"MR Sabuncu","year":"2015","unstructured":"Sabuncu MR, Konukoglu E (2015) Clinical prediction from structural brain MRI scans: a large-scale empirical study. Neuroinformatics 13(1):31\u201346. https:\/\/doi.org\/10.1007\/s12021-014-9238-1","journal-title":"Neuroinformatics"},{"issue":"1","key":"2841_CR24","doi-asserted-by":"publisher","first-page":"45","DOI":"10.1177\/0272989X0102100106","volume":"21","author":"EW Steyerberg","year":"2001","unstructured":"Steyerberg EW, Eijkemans MJ, Harrell FE, Habbema JD (2001) Prognostic modeling with logistic regression analysis: in search of a sensible strategy in small data sets. Med decis mak Int J Soc Med Decis Mak 21(1):45\u201356. https:\/\/doi.org\/10.1177\/0272989X0102100106","journal-title":"Med decis mak Int J Soc Med Decis Mak"},{"issue":"1","key":"2841_CR25","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1111\/j.2517-6161.1996.tb02080.x","volume":"58","author":"R Tibshirani","year":"1996","unstructured":"Tibshirani R (1996) Regression shrinkage and selection via the Lasso. J Roy Stat Soc 58(1):267\u2013288","journal-title":"J Roy Stat Soc"},{"issue":"2","key":"2841_CR26","doi-asserted-by":"publisher","first-page":"376","DOI":"10.2214\/AJR.05.0435","volume":"187","author":"N Saupe","year":"2006","unstructured":"Saupe N, Pfirrmann CWA, Schmid MR, Jost B, Werner CML, Zanetti M (2006) Association between rotator cuff abnormalities and reduced acromiohumeral distance. AJR Am J Roentgenol 187(2):376\u2013382. https:\/\/doi.org\/10.2214\/AJR.05.0435","journal-title":"AJR Am J Roentgenol"},{"issue":"10","key":"2841_CR27","doi-asserted-by":"publisher","first-page":"676","DOI":"10.1097\/BOT.0b013e31815bb09d","volume":"21","author":"J Agudelo","year":"2007","unstructured":"Agudelo J, Sch\u00fcrmann M, Stahel P, Helwig P, Morgan SJ, Zechel W, Bahrs C, Parekh A, Ziran B, Williams A, Smith W (2007) Analysis of efficacy and failure in proximal humerus fractures treated with locking plates. J Orthop Trauma 21(10):676\u2013681. https:\/\/doi.org\/10.1097\/BOT.0b013e31815bb09d","journal-title":"J Orthop Trauma"},{"issue":"2\u20133","key":"2841_CR28","doi-asserted-by":"publisher","first-page":"74","DOI":"10.1007\/s00402-002-0465-9","volume":"123","author":"H Lill","year":"2003","unstructured":"Lill H, Hepp P, Korner J, Kassi J-P, Verheyden AP, Josten C, Duda GN (2003) Proximal humeral fractures: How stiff should an implant be? a comparative mechanical study with new implants in human specimens. Arch orthop traumatic surg Archiv fur orthopadische und Unfall-Chirurgie 123(2\u20133):74\u201381. https:\/\/doi.org\/10.1007\/s00402-002-0465-9","journal-title":"Arch orthop traumatic surg Archiv fur orthopadische und Unfall-Chirurgie"},{"issue":"5","key":"2841_CR29","doi-asserted-by":"publisher","first-page":"596","DOI":"10.1007\/s00776-009-1382-3","volume":"14","author":"ID Micic","year":"2009","unstructured":"Micic ID, Kim K-C, Shin D-J, Shin S-J, Kim P-T, Park I-H, Jeon I-H (2009) Analysis of early failure of the locking compression plate in osteoporotic proximal humerus fractures. J Orthop Sci Off J Jpn Orthop Assoc 14(5):596\u2013601. https:\/\/doi.org\/10.1007\/s00776-009-1382-3","journal-title":"J Orthop Sci Off J Jpn Orthop Assoc"},{"issue":"6","key":"2841_CR30","doi-asserted-by":"publisher","first-page":"1320","DOI":"10.2106\/JBJS.H.00006","volume":"91","author":"N S\u00fcdkamp","year":"2009","unstructured":"S\u00fcdkamp N, Bayer J, Hepp P, Voigt C, Oestern H, K\u00e4\u00e4b M, Luo C, Plecko M, Wendt K, K\u00f6stler W, Konrad G (2009) Open reduction and internal fixation of proximal humeral fractures with use of the locking proximal humerus plate. results of a prospective multicentre, observational study. J bone joint surg Am 91(6):1320\u20131328. https:\/\/doi.org\/10.2106\/JBJS.H.00006","journal-title":"J bone joint surg Am"},{"issue":"3","key":"2841_CR31","doi-asserted-by":"publisher","first-page":"265","DOI":"10.1007\/s10195-017-0457-8","volume":"18","author":"JC Katthagen","year":"2017","unstructured":"Katthagen JC, Huber M, Grabowski S, Ellwein A, Jensen G, Lill H (2017) Failure and revision rates of proximal humeral fracture treatment with the use of a standardized treatment algorithm at a level-1 trauma center. J orthop traumatol Off J of Italian Soc Orthop Traumatol 18(3):265\u2013274. https:\/\/doi.org\/10.1007\/s10195-017-0457-8","journal-title":"J orthop traumatol Off J of Italian Soc Orthop Traumatol"},{"issue":"11","key":"2841_CR32","doi-asserted-by":"publisher","first-page":"1283","DOI":"10.1016\/j.injury.2011.01.017","volume":"42","author":"D Krappinger","year":"2011","unstructured":"Krappinger D, Bizzotto N, Riedmann S, Kammerlander C, Hengg C, Kralinger FS (2011) Predicting failure after surgical fixation of proximal humerus fractures. Injury 42(11):1283\u20131288. https:\/\/doi.org\/10.1016\/j.injury.2011.01.017","journal-title":"Injury"},{"issue":"3","key":"2841_CR33","doi-asserted-by":"publisher","first-page":"743","DOI":"10.2106\/JBJS.I.00919","volume":"92","author":"A Unnanuntana","year":"2010","unstructured":"Unnanuntana A, Gladnick BP, Donnelly E, Lane JM (2010) The assessment of fracture risk. J bone joint surg Am 92(3):743\u2013753. https:\/\/doi.org\/10.2106\/JBJS.I.00919","journal-title":"J bone joint surg Am"},{"issue":"2","key":"2841_CR34","first-page":"77","volume":"44","author":"A Jawa","year":"2015","unstructured":"Jawa A, Yi PH, Boykin RE, Gardner MJ, Gerber C, Lorich DG, Walch G, Warner JJP (2015) Treatment of proximal humerus fractures: comparison of shoulder and trauma surgeons. Am J orthop (Belle Mead, NJ) 44(2):77\u201381","journal-title":"Am J orthop (Belle Mead, NJ)"},{"issue":"Suppl 1","key":"2841_CR35","doi-asserted-by":"publisher","first-page":"27","DOI":"10.1007\/s12306-014-0319-y","volume":"98","author":"M Giovale","year":"2014","unstructured":"Giovale M, Mangano T, Rod\u00e0 E, Repetto I, Cerruti P, Kuqi E, Franchin F (2014) Shoulder hemiarthroplasty for complex humeral fractures: A 5 to 10-year follow-up retrospective study. Musculoskelet surg 98(Suppl 1):27\u201333. https:\/\/doi.org\/10.1007\/s12306-014-0319-y","journal-title":"Musculoskelet surg"},{"issue":"5","key":"2841_CR36","doi-asserted-by":"publisher","first-page":"565","DOI":"10.1007\/s00776-011-0113-8","volume":"16","author":"J Liu","year":"2011","unstructured":"Liu J, Li S-H, Cai Z-D, Lou L-M, Wu X, Zhu Y-C, Wu W-P (2011) Outcomes, and factors affecting outcomes, following shoulder hemiarthroplasty for proximal humeral fracture repair. J orthop Sci Offi J Jpn Orthop Assoc 16(5):565\u2013572. https:\/\/doi.org\/10.1007\/s00776-011-0113-8","journal-title":"J orthop Sci Offi J Jpn Orthop Assoc"},{"issue":"8","key":"2841_CR37","doi-asserted-by":"publisher","first-page":"452","DOI":"10.1097\/BOT.0000000000000057","volume":"28","author":"L Bai","year":"2014","unstructured":"Bai L, Fu Z, An S, Zhang P, Zhang D, Jiang B (2014) Effect of calcar screw use in surgical neck fractures of the proximal humerus with unstable medial support: a biomechanical study. J Orthop Trauma 28(8):452\u2013457. https:\/\/doi.org\/10.1097\/BOT.0000000000000057","journal-title":"J Orthop Trauma"},{"key":"2841_CR38","doi-asserted-by":"publisher","first-page":"5465130","DOI":"10.1155\/2017\/5465130","volume":"2017","author":"DG LeBrun","year":"2017","unstructured":"LeBrun DG, Guttmann DM, Shabason JE, Levin WP, Kovach SJ, Weber KL (2017) Predictors of wound complications following radiation and surgical resection of soft tissue sarcomas. Sarcoma 2017:5465130. https:\/\/doi.org\/10.1155\/2017\/5465130","journal-title":"Sarcoma"},{"issue":"11","key":"2841_CR39","doi-asserted-by":"publisher","first-page":"3612","DOI":"10.1007\/s11999-013-3130-4","volume":"471","author":"A Schwartz","year":"2013","unstructured":"Schwartz A, Rebecca A, Smith A, Casey W, Ashman J, Gunderson L, Curtis K, Chang Y-HH, Beauchamp C (2013) Risk factors for significant wound complications following wide resection of extremity soft tissue sarcomas. Clin Orthop Relat Res 471(11):3612\u20133617. https:\/\/doi.org\/10.1007\/s11999-013-3130-4","journal-title":"Clin Orthop Relat Res"}],"container-title":["European Journal of Orthopaedic Surgery & Traumatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00590-020-02841-w.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00590-020-02841-w\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00590-020-02841-w.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,20]],"date-time":"2024-08-20T18:16:33Z","timestamp":1724177793000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00590-020-02841-w"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,1,4]]},"references-count":39,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2021,8]]}},"alternative-id":["2841"],"URL":"https:\/\/doi.org\/10.1007\/s00590-020-02841-w","relation":{},"ISSN":["1633-8065","1432-1068"],"issn-type":[{"type":"print","value":"1633-8065"},{"type":"electronic","value":"1432-1068"}],"subject":[],"published":{"date-parts":[[2021,1,4]]},"assertion":[{"value":"11 September 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"18 November 2020","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"4 January 2021","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 conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and\/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"As this study was a retrospective review of medical records, informed consent was not required.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}