{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T11:36:13Z","timestamp":1784547373114,"version":"3.55.0"},"reference-count":41,"publisher":"Springer Science and Business Media LLC","issue":"10","license":[{"start":{"date-parts":[[2020,10,28]],"date-time":"2020-10-28T00:00:00Z","timestamp":1603843200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2020,10,28]],"date-time":"2020-10-28T00:00:00Z","timestamp":1603843200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Arch Orthop Trauma Surg"],"published-print":{"date-parts":[[2021,10]]},"DOI":"10.1007\/s00402-020-03666-2","type":"journal-article","created":{"date-parts":[[2020,10,28]],"date-time":"2020-10-28T12:02:41Z","timestamp":1603886561000},"page":"1701-1710","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Management of femoral head fractures through surgical hip dislocation (SHD): a demanding but safe technique"],"prefix":"10.1007","volume":"141","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0710-6487","authenticated-orcid":false,"given":"Ahmed A.","family":"Khalifa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2760-5846","authenticated-orcid":false,"given":"Omar","family":"Refai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Osama","family":"Farouk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7173-316X","authenticated-orcid":false,"given":"Mohammad Kamal","family":"Abdelnasser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,10,28]]},"reference":[{"issue":"12","key":"3666_CR1","doi-asserted-by":"publisher","first-page":"1245","DOI":"10.1016\/j.injury.2009.10.024","volume":"40","author":"PV Giannoudis","year":"2009","unstructured":"Giannoudis PV, Kontakis G, Christoforakis Z, Akula M, Tosounidis T, Koutras C (2009) Management, complications and clinical results of femoral head fractures. Injury 40(12):1245\u20131251. https:\/\/doi.org\/10.1016\/j.injury.2009.10.024","journal-title":"Injury"},{"issue":"3","key":"3666_CR2","doi-asserted-by":"publisher","first-page":"235","DOI":"10.1007\/s10195-017-0445-z","volume":"18","author":"JA Scolaro","year":"2017","unstructured":"Scolaro JA, Marecek G, Firoozabadi R, Krieg JC, Routt MLC (2017) Management and radiographic outcomes of femoral head fractures. J Ortho Traumatol: Off J Italian Soc Orthop Traumatol 18(3):235\u2013241. https:\/\/doi.org\/10.1007\/s10195-017-0445-z","journal-title":"J Ortho Traumatol: Off J Italian Soc Orthop Traumatol"},{"issue":"1","key":"3666_CR3","doi-asserted-by":"publisher","first-page":"338","DOI":"10.1186\/s13018-019-1383-7","volume":"14","author":"J Wang","year":"2019","unstructured":"Wang J, Cai L, Xie L, Chen H, Guo X, Yu K (2019) 3D printing-based Ganz approach for treatment of femoral head fractures: a prospective analysis. J Orthop Surg Res 14(1):338. https:\/\/doi.org\/10.1186\/s13018-019-1383-7","journal-title":"J Orthop Surg Res"},{"key":"3666_CR4","doi-asserted-by":"publisher","first-page":"183","DOI":"10.1007\/978-3-030-24608-2_13","volume-title":"Fracture Reduction and Fixation Techniques","author":"H Johal","year":"2020","unstructured":"Johal H, Axelrod D, Bhandari M (2020) Femoral Head Fractures. In: Giannoudis PV (ed) Fracture Reduction and Fixation Techniques. Springer International Publishing, Cham, pp 183\u2013191. https:\/\/doi.org\/10.1007\/978-3-030-24608-2_13"},{"issue":"2","key":"3666_CR5","doi-asserted-by":"publisher","first-page":"110","DOI":"10.1016\/j.mporth.2018.02.001","volume":"32","author":"M Diament","year":"2018","unstructured":"Diament M, White C (2018) Hip dislocations and femoral head fractures. Orthop Trauma 32(2):110\u2013115","journal-title":"Orthop Trauma"},{"issue":"5","key":"3666_CR6","doi-asserted-by":"publisher","first-page":"1114","DOI":"10.1007\/s11999.0000000000000045","volume":"476","author":"NM Romeo","year":"2018","unstructured":"Romeo NM, Firoozabadi R (2018) Classifications in brief: the Pipkin classification of femoral head fractures. Clin Orthop Relat Res 476(5):1114\u20131119. https:\/\/doi.org\/10.1007\/s11999.0000000000000045","journal-title":"Clin Orthop Relat Res"},{"issue":"377","key":"3666_CR7","doi-asserted-by":"publisher","first-page":"32","DOI":"10.1097\/00003086-200008000-00007","volume":"377","author":"JE Alonso","year":"2000","unstructured":"Alonso JE, Volgas DA, Giordano V, Stannard JP (2000) A review of the treatment of hip dislocations associated with acetabular fractures. Clin Orthop Relat Res 377(377):32\u201343. https:\/\/doi.org\/10.1097\/00003086-200008000-00007","journal-title":"Clin Orthop Relat Res"},{"issue":"377","key":"3666_CR8","doi-asserted-by":"publisher","first-page":"44","DOI":"10.1097\/00003086-200008000-00008","volume":"377","author":"JP Stannard","year":"2000","unstructured":"Stannard JP, Harris HW, Volgas DA, Alonso JE (2000) Functional outcome of patients with femoral head fractures associated with hip dislocations. Clin Orthop Relat Res 377(377):44\u201356. https:\/\/doi.org\/10.1097\/00003086-200008000-00008","journal-title":"Clin Orthop Relat Res"},{"issue":"7","key":"3666_CR9","doi-asserted-by":"publisher","first-page":"1077","DOI":"10.1007\/s00264-010-1087-4","volume":"35","author":"ZW Chen","year":"2011","unstructured":"Chen ZW, Lin B, Zhai WL, Guo ZM, Liang Z, Zheng JP, Lian KJ, Ding ZQ (2011) Conservative versus surgical management of Pipkin type I fractures associated with posterior dislocation of the hip: a randomised controlled trial. Int Orthop 35(7):1077\u20131081. https:\/\/doi.org\/10.1007\/s00264-010-1087-4","journal-title":"Int Orthop"},{"issue":"1","key":"3666_CR10","doi-asserted-by":"publisher","first-page":"155","DOI":"10.1016\/j.jcot.2017.07.013","volume":"10","author":"V Giordano","year":"2019","unstructured":"Giordano V, Giordano M, Gloria RC, de Souza FS, di Tullio P, Lages MM, Koch HA (2019) General principles for treatment of femoral head fractures. J Clin Orthop Trauma 10(1):155\u2013160. https:\/\/doi.org\/10.1016\/j.jcot.2017.07.013","journal-title":"J Clin Orthop Trauma"},{"issue":"12","key":"3666_CR11","doi-asserted-by":"publisher","first-page":"3744","DOI":"10.1007\/s11999-015-4352-4","volume":"473","author":"A Masse","year":"2015","unstructured":"Masse A, Aprato A, Alluto C, Favuto M, Ganz R (2015) Surgical hip dislocation is a reliable approach for treatment of femoral head fractures. Clin Orthop Relat Res 473(12):3744\u20133751. https:\/\/doi.org\/10.1007\/s11999-015-4352-4","journal-title":"Clin Orthop Relat Res"},{"issue":"Suppl 1","key":"3666_CR12","doi-asserted-by":"publisher","first-page":"S16","DOI":"10.1097\/BOT.0000000000001216","volume":"32","author":"WM Ricci","year":"2018","unstructured":"Ricci WM, McAndrew CM, Miller AN, Avery MC (2018) Open reduction and internal fixation of the femoral head via the Smith-Petersen approach. J Orthop Trauma 32(Suppl 1):S16\u2013S17. https:\/\/doi.org\/10.1097\/BOT.0000000000001216","journal-title":"J Orthop Trauma"},{"issue":"5","key":"3666_CR13","doi-asserted-by":"publisher","first-page":"637","DOI":"10.1007\/s00402-014-1960-5","volume":"134","author":"MF Mostafa","year":"2014","unstructured":"Mostafa MF, El-Adl W, El-Sayed MA (2014) Operative treatment of displaced Pipkin type I and II femoral head fractures. Arch Orthop Trauma Surg 134(5):637\u2013644. https:\/\/doi.org\/10.1007\/s00402-014-1960-5","journal-title":"Arch Orthop Trauma Surg"},{"key":"3666_CR14","unstructured":"Chen Z, Dai Z, Liao Y, Fan W, Tang Z (2011) Treatment of type IV Pipkin fracture through transtrochanteric approach with trochanteric osteotomy. Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery 25(10):1184\u20131187"},{"issue":"8","key":"3666_CR15","doi-asserted-by":"publisher","first-page":"1119","DOI":"10.1302\/0301-620x.83b8.11964","volume":"83","author":"R Ganz","year":"2001","unstructured":"Ganz R, Gill TJ, Gautier E, Ganz K, Krugel N, Berlemann U (2001) Surgical dislocation of the adult hip a technique with full access to the femoral head and acetabulum without the risk of avascular necrosis. J Bone Joint Surg Br 83(8):1119\u20131124. https:\/\/doi.org\/10.1302\/0301-620x.83b8.11964","journal-title":"J Bone Joint Surg Br"},{"issue":"4","key":"3666_CR16","doi-asserted-by":"publisher","first-page":"478","DOI":"10.1016\/j.injury.2007.01.023","volume":"38","author":"P Henle","year":"2007","unstructured":"Henle P, Kloen P, Siebenrock KA (2007) Femoral head injuries: which treatment strategy can be recommended? Injury 38(4):478\u2013488. https:\/\/doi.org\/10.1016\/j.injury.2007.01.023","journal-title":"Injury"},{"issue":"12","key":"3666_CR17","doi-asserted-by":"publisher","first-page":"544","DOI":"10.1097\/BOT.0000000000000399","volume":"29","author":"AS Gavaskar","year":"2015","unstructured":"Gavaskar AS, Tummala NC (2015) Ganz surgical dislocation of the hip is a safe technique for operative treatment of Pipkin fractures. Results of a prospective trial. J Orthop Trauma 29(12):544\u2013548. https:\/\/doi.org\/10.1097\/BOT.0000000000000399","journal-title":"J Orthop Trauma"},{"issue":"4","key":"3666_CR18","doi-asserted-by":"publisher","first-page":"929","DOI":"10.1007\/s11999-008-0505-z","volume":"467","author":"BD Solberg","year":"2009","unstructured":"Solberg BD, Moon CN, Franco DP (2009) Use of a trochanteric flip osteotomy improves outcomes in Pipkin IV fractures. Clin Orthop Relat Res 467(4):929\u2013933. https:\/\/doi.org\/10.1007\/s11999-008-0505-z","journal-title":"Clin Orthop Relat Res"},{"issue":"2","key":"3666_CR19","doi-asserted-by":"publisher","first-page":"138","DOI":"10.1007\/s00068-005-1403-7","volume":"31","author":"M Keel","year":"2005","unstructured":"Keel M, Eid K, Isler B, Trentz O, Ertel W (2005) The role of surgical hip dislocation in the treatment of acetabular and femoral head fractures. Eur J Trauma 31(2):138\u2013147","journal-title":"Eur J Trauma"},{"issue":"3","key":"3666_CR20","doi-asserted-by":"publisher","first-page":"344","DOI":"10.1016\/j.injury.2006.04.129","volume":"38","author":"S Ovre","year":"2007","unstructured":"Ovre S, Sandvik L, Madsen JE, Roise O (2007) Modification of the Harris Hip Score in acetabular fracture treatment. Injury 38(3):344\u2013349. https:\/\/doi.org\/10.1016\/j.injury.2006.04.129","journal-title":"Injury"},{"issue":"6","key":"3666_CR21","doi-asserted-by":"publisher","first-page":"796","DOI":"10.1080\/17453670510045390","volume":"76","author":"S Ovre","year":"2005","unstructured":"Ovre S, Sandvik L, Madsen JE, Roise O (2005) Comparison of distribution, agreement and correlation between the original and modified Merle d\u2019Aubigne-Postel Score and the Harris Hip Score after acetabular fracture treatment: moderate agreement, high ceiling effect and excellent correlation in 450 patients. Acta Orthop 76(6):796\u2013802. https:\/\/doi.org\/10.1080\/17453670510045390","journal-title":"Acta Orthop"},{"issue":"11","key":"3666_CR22","doi-asserted-by":"publisher","first-page":"1632","DOI":"10.2106\/00004623-199611000-00002","volume":"78","author":"JM Matta","year":"1996","unstructured":"Matta JM (1996) Fractures of the acetabulum: accuracy of reduction and clinical results in patients managed operatively within three weeks after the injury. J Bone Joint Surg Am 78(11):1632\u20131645","journal-title":"J Bone Joint Surg Am"},{"issue":"8","key":"3666_CR23","doi-asserted-by":"publisher","first-page":"1629","DOI":"10.2106\/00004623-197355080-00006","volume":"55","author":"AF Brooker","year":"1973","unstructured":"Brooker AF, Bowerman JW, Robinson RA, Riley LH Jr (1973) Ectopic ossification following total hip replacement. Incidence and a method of classification. J Bone Joint Surg Am 55(8):1629\u20131632","journal-title":"J Bone Joint Surg Am"},{"issue":"8","key":"3666_CR24","doi-asserted-by":"publisher","first-page":"1680","DOI":"10.1097\/01.blo.0000534679.75870.5f","volume":"476","author":"B Kovalenko","year":"2018","unstructured":"Kovalenko B, Bremjit P, Fernando N (2018) Classifications in brief: Tonnis classification of hip osteoarthritis. Clin Orthop Relat Res 476(8):1680\u20131684. https:\/\/doi.org\/10.1097\/01.blo.0000534679.75870.5f","journal-title":"Clin Orthop Relat Res"},{"issue":"4","key":"3666_CR25","doi-asserted-by":"publisher","first-page":"329","DOI":"10.1016\/j.injury.2009.08.007","volume":"41","author":"TE Clegg","year":"2010","unstructured":"Clegg TE, Roberts CS, Greene JW, Prather BA (2010) Hip dislocations\u2013epidemiology, treatment, and outcomes. Injury 41(4):329\u2013334. https:\/\/doi.org\/10.1016\/j.injury.2009.08.007","journal-title":"Injury"},{"issue":"4","key":"3666_CR26","doi-asserted-by":"publisher","first-page":"199","DOI":"10.5435\/00124635-201004000-00003","volume":"18","author":"DM Foulk","year":"2010","unstructured":"Foulk DM, Mullis BH (2010) Hip dislocation: evaluation and management. J Am Acad Orthop Surg 18(4):199\u2013209. https:\/\/doi.org\/10.5435\/00124635-201004000-00003","journal-title":"J Am Acad Orthop Surg"},{"issue":"3","key":"3666_CR27","doi-asserted-by":"publisher","first-page":"242","DOI":"10.1093\/jhps\/hnv047","volume":"2","author":"JT Newman","year":"2015","unstructured":"Newman JT, Saroki AJ, Philippon MJ (2015) Hip arthroscopy for the management of trauma: a literature review. J Hip Preserv Surg 2(3):242\u2013248. https:\/\/doi.org\/10.1093\/jhps\/hnv047","journal-title":"J Hip Preserv Surg"},{"key":"3666_CR28","doi-asserted-by":"publisher","first-page":"227","DOI":"10.1007\/978-3-319-97602-0_24","volume-title":"Intraarticular fractures","author":"DK Matsuda","year":"2019","unstructured":"Matsuda DK (2019) Arthroscopic reduction and internal fixation of femoral head fractures. In: Doral MN, Karlsson J, Nyland J, Benedetto KP (eds) Intraarticular fractures. Springer International Publishing, Cham, pp 227\u2013234. https:\/\/doi.org\/10.1007\/978-3-319-97602-0_24"},{"key":"3666_CR29","doi-asserted-by":"crossref","unstructured":"Gillespie P, Aprato A, Bircher M (2014) Hip dislocation and femoral head fractures. European Surgical Orthopaedics and Traumatology: the Efort Textbook Berlin, Heidelberg, Germany: Springer 21792202","DOI":"10.1007\/978-3-642-34746-7_114"},{"key":"3666_CR30","unstructured":"Tang Y, Liu Y, Zhu Y, Li J, Li W, Li Q, Jia Y (2015) Surgical Hip Dislocation Approach for Treatment of Femoral Head Fracture. Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese J Reparative Reconstructive Surg 29(11):1327\u20131331"},{"issue":"2","key":"3666_CR31","doi-asserted-by":"publisher","first-page":"137","DOI":"10.5301\/HIP.2012.9208","volume":"22","author":"A Masse","year":"2012","unstructured":"Masse A, Aprato A, Grappiolo G, Turchetto L, Campacci A, Ganz R (2012) Surgical hip dislocation for anatomic reorientation of slipped capital femoral epiphysis: preliminary results. Hip Int: J Clin Exp Res Hip Pathol Therapy 22(2):137\u2013144. https:\/\/doi.org\/10.5301\/HIP.2012.9208","journal-title":"Hip Int: J Clin Exp Res Hip Pathol Therapy"},{"issue":"12","key":"3666_CR32","doi-asserted-by":"publisher","first-page":"4056","DOI":"10.1007\/s11999-013-3228-8","volume":"471","author":"A Masse","year":"2013","unstructured":"Masse A, Aprato A, Rollero L, Bersano A, Ganz R (2013) Surgical dislocation technique for the treatment of acetabular fractures. Clin Orthop Relat Res 471(12):4056\u20134064. https:\/\/doi.org\/10.1007\/s11999-013-3228-8","journal-title":"Clin Orthop Relat Res"},{"issue":"12","key":"3666_CR33","doi-asserted-by":"publisher","first-page":"1132","DOI":"10.2106\/JBJS.J.00794","volume":"93","author":"EL Sink","year":"2011","unstructured":"Sink EL, Beaule PE, Sucato D, Kim YJ, Millis MB, Dayton M, Trousdale RT, Sierra RJ, Zaltz I, Schoenecker P, Monreal A, Clohisy J (2011) Multicenter study of complications following surgical dislocation of the hip. J Bone Joint Surg Am 93(12):1132\u20131136. https:\/\/doi.org\/10.2106\/JBJS.J.00794","journal-title":"J Bone Joint Surg Am"},{"issue":"4","key":"3666_CR34","doi-asserted-by":"publisher","first-page":"934","DOI":"10.1007\/s11999-008-0390-5","volume":"467","author":"RT Steffen","year":"2009","unstructured":"Steffen RT, Fern D, Norton M, Murray DW, Gill HS (2009) Femoral oxygenation during hip resurfacing through the trochanteric flip approach. Clin Orthop Relat Res 467(4):934\u2013939. https:\/\/doi.org\/10.1007\/s11999-008-0390-5","journal-title":"Clin Orthop Relat Res"},{"key":"3666_CR35","unstructured":"Chen Z, Liang X, Wu J, Cui J, Tang Z, Fan W, Li C, Wu W, Dai Z (2015) Diagnosis and Treatment of Acetabular Labrum Injury in Pipkin Fracture. Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese J Reparative Reconstructive Surg 29 (1):14\u201318"},{"key":"3666_CR36","doi-asserted-by":"publisher","first-page":"3526018","DOI":"10.1155\/2019\/3526018","volume":"2019","author":"R Henriques","year":"2019","unstructured":"Henriques R, Ramalho D, Soares do Brito J, Rocha P, Spranger A, Almeida P (2019) Management of Pipkin fractures using a safe surgical hip dislocation. Case Rep Orthop 2019:3526018. https:\/\/doi.org\/10.1155\/2019\/3526018","journal-title":"Case Rep Orthop"},{"key":"3666_CR37","doi-asserted-by":"publisher","first-page":"15","DOI":"10.1097\/00003086-200008000-00005","volume":"377","author":"RA Brooks","year":"2000","unstructured":"Brooks RA, Ribbans WJ (2000) Diagnosis and imaging studies of traumatic hip dislocations in the adult. Clin Orthop Relat Res 377:15\u201323. https:\/\/doi.org\/10.1097\/00003086-200008000-00005","journal-title":"Clin Orthop Relat Res"},{"issue":"4","key":"3666_CR38","doi-asserted-by":"publisher","first-page":"239","DOI":"10.1007\/BF00198406","volume":"24","author":"A Laorr","year":"1995","unstructured":"Laorr A, Greenspan A, Anderson MW, Moehring HD, McKinley T (1995) Traumatic hip dislocation: early MRI findings. Skeletal Radiol 24(4):239\u2013245. https:\/\/doi.org\/10.1007\/BF00198406","journal-title":"Skeletal Radiol"},{"issue":"2","key":"3666_CR39","doi-asserted-by":"publisher","first-page":"95","DOI":"10.1007\/s12306-012-0182-7","volume":"96","author":"M Oransky","year":"2012","unstructured":"Oransky M, Martinelli N, Sanzarello I, Papapietro N (2012) Fractures of the femoral head: a long-term follow-up study. Musculoskelet Surg 96(2):95\u201399. https:\/\/doi.org\/10.1007\/s12306-012-0182-7","journal-title":"Musculoskelet Surg"},{"issue":"6","key":"3666_CR40","doi-asserted-by":"publisher","first-page":"1163","DOI":"10.1111\/os.12578","volume":"11","author":"ZH Wang","year":"2019","unstructured":"Wang ZH, Li KN, Zhao P, Chen ED, Zheng J (2019) In situ reduction and fixation of the anterior medial fenestration approach for femoral head fracture. Orthop Surg 11(6):1163\u20131172. https:\/\/doi.org\/10.1111\/os.12578","journal-title":"Orthop Surg"},{"key":"3666_CR41","doi-asserted-by":"publisher","first-page":"176","DOI":"10.1016\/j.ijsu.2016.02.003","volume":"27","author":"CG Wang","year":"2016","unstructured":"Wang CG, Li YM, Zhang HF, Li H, Li ZJ (2016) Anterior approach versus posterior approach for Pipkin I and II femoral head fractures: a systemic review and meta-analysis. Int J Surg (London, England) 27:176\u2013181. https:\/\/doi.org\/10.1016\/j.ijsu.2016.02.003","journal-title":"Int J Surg (London, England)"}],"container-title":["Archives of Orthopaedic and Trauma Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00402-020-03666-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00402-020-03666-2\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00402-020-03666-2.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,9,13]],"date-time":"2021-09-13T12:44:24Z","timestamp":1631537064000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00402-020-03666-2"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,10,28]]},"references-count":41,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2021,10]]}},"alternative-id":["3666"],"URL":"https:\/\/doi.org\/10.1007\/s00402-020-03666-2","relation":{},"ISSN":["0936-8051","1434-3916"],"issn-type":[{"value":"0936-8051","type":"print"},{"value":"1434-3916","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,10,28]]},"assertion":[{"value":"5 May 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"15 October 2020","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"28 October 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 conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This article does not contain any experimental studies with human participants or animals performed by any of the authors. Ethical approval was waived by the local Ethics Committee of our institution because of the retrospective nature of the study and all the procedures being performed were part of the routine care.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Informed consent was obtained from all individual participants included in the study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}},{"value":"All authors approved the final manuscript and its appropriateness for submission and publication.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"Orthopaedic Department, Assiut University Hospital, Assiut, Egypt.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Study setting"}}]}}