{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T12:51:21Z","timestamp":1788007881019,"version":"build-2784847793"},"reference-count":42,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T00:00:00Z","timestamp":1616544000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T00:00:00Z","timestamp":1616544000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the National Natural Science Foundation of China Program","award":["81672135"],"award-info":[{"award-number":["81672135"]}]},{"name":"Science and Technology Planning Project of Sichuan Province","award":["2019YFS0266"],"award-info":[{"award-number":["2019YFS0266"]}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Musculoskelet Disord"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Bilateral osseous ankylosed hips secondary to ankylosis spondylitis (AS) are relatively rare but impact the quality of life hugely. Cementless total hip arthroplasty (THA) for bilateral osseous ankylosed hips with AS is a challenging procedure. No previous literature compares the clinical outcomes of synchronous and sequential bilateral THA for these special patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>23 patients (46 hips) were retrospectively analyzed and divided into bilateral THA synchronously (group A) and sequentially (group B). The clinical measurement, radiological assessments, and complications were compared. Independent sample T test was used for data analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Harris Hip Scores (HHS) improved greatly for both groups (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.58) as well as the range of motion (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.64). But group B can realize shorter time (3.6\u2009\u00b1\u20091.2 days) to walk for the first time postoperatively (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.02). Group A needed more blood transfusions (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.028). For group A, no statistical difference was found in the bilateral inclination of cup (IC) (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.48) and femoral offset (FO) (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.07). For group B, no statistical difference was observed in bilateral IC (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.37) but in bilateral FO (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.04). Group A showed the fewer difference of bilateral IC (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.02), while comparative measurements were found for two groups in the difference of bilateral FO (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.78) and leg length discrepancy (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.83). For both groups, the total hospital expense for each patient was similar and almost all patients were very satisfied with the outcomes. For group A, one patient encountered femoral fracture intraoperatively and another patient encountered hip dislocation and delay union of wound. 3 hips from group A and 3 hips from group B encountered heterotopic ossification.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Our retrospective research demonstrated that cementless bilateral THA was a reliable treatment for osseous ankylosed hip due to AS. Synchronous and sequential bilateral THA can realize similarly satisfactory clinical outcomes and radiographic evaluation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12891-021-04142-7","type":"journal-article","created":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T04:03:36Z","timestamp":1616558616000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Synchronous or sequential cementless bilateral total hip arthroplasty for osseous ankylosed hips with ankylosing spondylitis"],"prefix":"10.1186","volume":"22","author":[{"given":"Ping","family":"Mou","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei Nan","family":"Zeng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zongke","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,3,24]]},"reference":[{"issue":"9570","key":"4142_CR1","doi-asserted-by":"publisher","first-page":"1379","DOI":"10.1016\/S0140-6736(07)60635-7","volume":"369","author":"J Braun","year":"2007","unstructured":"Braun J, Sieper J. Ankylosing spondylitis. Lancet. 2007;369(9570):1379\u201390.","journal-title":"Lancet"},{"key":"4142_CR2","doi-asserted-by":"crossref","unstructured":"Raychaudhuri SP, Deodhar A. The classification and diagnostic criteria of ankylosing spondylitis. Journal of autoimmunity. 2014;48\u201349:128 \u2013 33.","DOI":"10.1016\/j.jaut.2014.01.015"},{"issue":"4","key":"4142_CR3","doi-asserted-by":"publisher","first-page":"361","DOI":"10.1002\/art.1780270401","volume":"27","author":"S van der Linden","year":"1984","unstructured":"van der Linden S, Valkenburg HA, Cats A. Evaluation of diagnostic criteria for ankylosing spondylitis. A proposal for modification of the New York criteria. Arthritis rheumatism. 1984;27(4):361\u20138.","journal-title":"Arthritis rheumatism"},{"issue":"1","key":"4142_CR4","doi-asserted-by":"publisher","first-page":"52","DOI":"10.1016\/S0883-5403(00)91155-0","volume":"15","author":"WM Tang","year":"2000","unstructured":"Tang WM, Chiu KY. Primary total hip arthroplasty in patients with ankylosing spondylitis. J Arthroplast. 2000;15(1):52\u20138.","journal-title":"J Arthroplast"},{"issue":"8","key":"4142_CR5","doi-asserted-by":"publisher","first-page":"1181","DOI":"10.2106\/00004623-199708000-00010","volume":"79","author":"DH Sochart","year":"1997","unstructured":"Sochart DH, Porter ML. Long-term results of total hip replacement in young patients who had ankylosing spondylitis. Eighteen to thirty-year results with survivorship analysis. The Journal of bone joint surgery American volume. 1997;79(8):1181\u20139.","journal-title":"The Journal of bone joint surgery American volume"},{"issue":"4","key":"4142_CR6","doi-asserted-by":"publisher","first-page":"427","DOI":"10.1054\/arth.2002.32170","volume":"17","author":"AB Joshi","year":"2002","unstructured":"Joshi AB, Markovic L, Hardinge K, Murphy JC. Total hip arthroplasty in ankylosing spondylitis: an analysis of 181 hips. J Arthroplast. 2002;17(4):427\u201333.","journal-title":"J Arthroplast"},{"issue":"4","key":"4142_CR7","doi-asserted-by":"publisher","first-page":"697","DOI":"10.1007\/s00264-011-1313-8","volume":"36","author":"H Bangjian","year":"2012","unstructured":"Bangjian H, Peijian T, Ju L. Bilateral synchronous total hip arthroplasty for ankylosed hips. International orthopaedics. 2012;36(4):697\u2013701.","journal-title":"International orthopaedics"},{"issue":"9","key":"4142_CR8","doi-asserted-by":"publisher","first-page":"1328","DOI":"10.2106\/00004623-198567090-00004","volume":"67","author":"JJ Callaghan","year":"1985","unstructured":"Callaghan JJ, Brand RA, Pedersen DR. Hip arthrodesis. A long-term follow-up. The Journal of bone joint surgery American volume. 1985;67(9):1328\u201335.","journal-title":"The Journal of bone joint surgery American volume"},{"issue":"1","key":"4142_CR9","doi-asserted-by":"publisher","first-page":"89","DOI":"10.1016\/S0883-5403(06)80015-X","volume":"5","author":"CS Roberts","year":"1990","unstructured":"Roberts CS, Fetto JF. Functional outcome of hip fusion in the young patient. Follow-up study of 10 patients. J Arthroplast. 1990;5(1):89\u201396.","journal-title":"J Arthroplast"},{"issue":"6","key":"4142_CR10","doi-asserted-by":"publisher","first-page":"853","DOI":"10.2106\/00004623-198466060-00005","volume":"66","author":"PD Sponseller","year":"1984","unstructured":"Sponseller PD, McBeath AA, Perpich M. Hip arthrodesis in young patients. A long-term follow-up study. The Journal of bone joint surgery American volume. 1984;66(6):853\u20139.","journal-title":"The Journal of bone joint surgery American volume"},{"issue":"3","key":"4142_CR11","doi-asserted-by":"publisher","first-page":"507","DOI":"10.1007\/s00264-017-3589-9","volume":"42","author":"L Ding","year":"2018","unstructured":"Ding L, Gao YH, Li YR, Liu JG, Li SQ, Qi X. Determinants of satisfaction following total hip arthroplasty in patients with ankylosing spondylitis. International orthopaedics. 2018;42(3):507\u201311.","journal-title":"International orthopaedics"},{"issue":"7","key":"4142_CR12","doi-asserted-by":"publisher","first-page":"1037","DOI":"10.1016\/j.arth.2007.03.027","volume":"22","author":"YL Kim","year":"2007","unstructured":"Kim YL, Shin SI, Nam KW, Yoo JJ, Kim YM, Kim HJ. Total hip arthroplasty for bilaterally ankylosed hips. J Arthroplast. 2007;22(7):1037\u201341.","journal-title":"J Arthroplast"},{"key":"4142_CR13","doi-asserted-by":"crossref","unstructured":"Kim YH, Oh SH, Kim JS, Lee SH. Total hip arthroplasty for the treatment of osseous ankylosed hips. Clinical orthopaedics and related research. 2003(414):136\u201348.","DOI":"10.1097\/01.blo.0000081935.75404.7f"},{"issue":"3","key":"4142_CR14","doi-asserted-by":"publisher","first-page":"352","DOI":"10.1111\/os.12254","volume":"8","author":"DX Feng","year":"2016","unstructured":"Feng DX, Zhang K, Zhang YM, Nian YW, Zhang J, Kang XM, et al. Bilaterally Primary Cementless Total Hip Arthroplasty for Severe Hip Ankylosis with Ankylosing Spondylitis. Orthopaedic surgery. 2016;8(3):352\u20139.","journal-title":"Orthopaedic surgery"},{"issue":"4 Suppl 55","key":"4142_CR15","first-page":"62-7","volume":"27","author":"D Vosse","year":"2009","unstructured":"Vosse D, de Vlam K. Osteoporosis in rheumatoid arthritis and ankylosing spondylitis. Clin Exp Rheumatol. 2009;27(4 Suppl 55):62-7.","journal-title":"Clin Exp Rheumatol"},{"issue":"1","key":"4142_CR16","doi-asserted-by":"publisher","first-page":"45","DOI":"10.2106\/00004623-199072010-00008","volume":"72","author":"DJ Kilgus","year":"1990","unstructured":"Kilgus DJ, Amstutz HC, Wolgin MA, Dorey FJ. Joint replacement for ankylosed hips. The Journal of bone joint surgery American volume. 1990;72(1):45\u201354.","journal-title":"The Journal of bone joint surgery American volume"},{"issue":"4","key":"4142_CR17","doi-asserted-by":"publisher","first-page":"737","DOI":"10.2106\/00004623-196951040-00012","volume":"51","author":"WH Harris","year":"1969","unstructured":"Harris WH. Traumatic arthritis of the hip after dislocation and acetabular fractures: treatment by mold arthroplasty. An end-result study using a new method of result evaluation. The Journal of bone joint surgery American volume. 1969;51(4):737\u201355.","journal-title":"The Journal of bone joint surgery American volume"},{"issue":"6","key":"4142_CR18","doi-asserted-by":"publisher","first-page":"1002","DOI":"10.1016\/j.arth.2015.01.027","volume":"30","author":"P Ellapparadja","year":"2015","unstructured":"Ellapparadja P, Mahajan V, Deakin AH, Deep K. Reproduction of Hip Offset and Leg Length in Navigated Total Hip Arthroplasty: How Accurate Are We? J Arthroplast. 2015;30(6):1002\u20137.","journal-title":"J Arthroplast"},{"issue":"1","key":"4142_CR19","doi-asserted-by":"publisher","first-page":"137","DOI":"10.1016\/j.arth.2013.04.004","volume":"29","author":"M Ker\u0161i\u010d","year":"2014","unstructured":"Ker\u0161i\u010d M, Dolinar D, Antoli\u010d V, Mav\u010di\u010d B. The impact of leg length discrepancy on clinical outcome of total hip arthroplasty: comparison of four measurement methods. J Arthroplast. 2014;29(1):137\u201341.","journal-title":"J Arthroplast"},{"issue":"8","key":"4142_CR20","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. Ectopic ossification following total hip replacement. Incidence and a method of classification. The Journal of bone joint surgery American volume. 1973;55(8):1629\u201332.","journal-title":"The Journal of bone joint surgery American volume"},{"issue":"4","key":"4142_CR21","doi-asserted-by":"publisher","first-page":"585","DOI":"10.1302\/0301-620X.80B4.0800585","volume":"80","author":"RP Joshi","year":"1998","unstructured":"Joshi RP, Eftekhar NS, McMahon DJ, Nercessian OA. Osteolysis after Charnley primary low-friction arthroplasty. A comparison of two matched paired groups. The Journal of bone joint surgery British volume. 1998;80(4):585\u201390.","journal-title":"The Journal of bone joint surgery British volume"},{"issue":"7","key":"4142_CR22","doi-asserted-by":"publisher","first-page":"1025","DOI":"10.2106\/00004623-199072070-00011","volume":"72","author":"WJ Maloney","year":"1990","unstructured":"Maloney WJ, Jasty M, Harris WH, Galante JO, Callaghan JJ. Endosteal erosion in association with stable uncemented femoral components. The Journal of bone joint surgery American volume. 1990;72(7):1025\u201334.","journal-title":"The Journal of bone joint surgery American volume"},{"key":"4142_CR23","doi-asserted-by":"crossref","unstructured":"DeLee JG, Charnley J. Radiological demarcation of cemented sockets in total hip replacement. Clinical orthopaedics and related research. 1976(121):20\u201332.","DOI":"10.1097\/00003086-197611000-00003"},{"key":"4142_CR24","doi-asserted-by":"crossref","unstructured":"Engh CA, Massin P, Suthers KE. Roentgenographic assessment of the biologic fixation of porous-surfaced femoral components. Clinical orthopaedics and related research. 1990(257):107\u201328.","DOI":"10.1097\/00003086-199008000-00022"},{"issue":"10172","key":"4142_CR25","doi-asserted-by":"publisher","first-page":"613","DOI":"10.1016\/S0140-6736(18)31859-2","volume":"393","author":"N Sodhi","year":"2019","unstructured":"Sodhi N, Mont MA. Survival of total hip replacements. Lancet. 2019;393(10172):613.","journal-title":"Lancet"},{"issue":"12","key":"4142_CR26","doi-asserted-by":"publisher","first-page":"2473","DOI":"10.1007\/s00264-014-2461-4","volume":"38","author":"C Ye","year":"2014","unstructured":"Ye C, Liu R, Sun C, Lin J, Li H, Re H, et al. Cementless bilateral synchronous total hip arthroplasty in ankylosing spondylitis with hip ankylosis. International orthopaedics. 2014;38(12):2473\u20136.","journal-title":"International orthopaedics"},{"issue":"1","key":"4142_CR27","doi-asserted-by":"publisher","first-page":"71","DOI":"10.1016\/j.arth.2018.08.025","volume":"34","author":"D Gautam","year":"2019","unstructured":"Gautam D, Malhotra R. Total Hip Arthroplasty in Ankylosing Spondylitis With Extension Contracture of Hips. J Arthroplast. 2019;34(1):71\u20136.","journal-title":"J Arthroplast"},{"issue":"1","key":"4142_CR28","doi-asserted-by":"publisher","first-page":"253","DOI":"10.1186\/s13018-019-1288-5","volume":"14","author":"HZ Guo","year":"2019","unstructured":"Guo HZ, Yang CX, Tang ZP, Wang CX. The effects of total hip arthroplasty in treating hip bony fusion in young and middle-aged patients with ankylosing spondylitis. J Orthop Surg Res. 2019;14(1):253.","journal-title":"J Orthop Surg Res"},{"issue":"8","key":"4142_CR29","doi-asserted-by":"publisher","first-page":"1198","DOI":"10.1016\/j.arth.2006.11.013","volume":"22","author":"T Khan","year":"2007","unstructured":"Khan T, Knowles D. Damage to the superior gluteal nerve during the direct lateral approach to the hip: a cadaveric study. J Arthroplast. 2007;22(8):1198\u2013200.","journal-title":"J Arthroplast"},{"issue":"6","key":"4142_CR30","doi-asserted-by":"publisher","first-page":"903","DOI":"10.1302\/0301-620X.78B6.0780903","volume":"78","author":"M Ramesh","year":"1996","unstructured":"Ramesh M, O\u2019Byrne JM, McCarthy N, Jarvis A, Mahalingham K, Cashman WF. Damage to the superior gluteal nerve after the Hardinge approach to the hip. The Journal of bone joint surgery British volume. 1996;78(6):903\u20136.","journal-title":"The Journal of bone joint surgery British volume"},{"issue":"3","key":"4142_CR31","first-page":"613","volume":"27","author":"A Zink","year":"2000","unstructured":"Zink A, Braun J, Listing J, Wollenhaupt J. Disability and handicap in rheumatoid arthritis and ankylosing spondylitis\u2013results from the German rheumatological database. German Collaborative Arthritis Centers. J Rhuematol. 2000;27(3):613\u201322.","journal-title":"J Rhuematol"},{"issue":"Pt 5","key":"4142_CR32","doi-asserted-by":"publisher","first-page":"503","DOI":"10.1046\/j.1469-7580.2001.19950503.x","volume":"199","author":"M Benjamin","year":"2001","unstructured":"Benjamin M, McGonagle D. The anatomical basis for disease localisation in seronegative spondyloarthropathy at entheses and related sites. Journal of anatomy. 2001;199(Pt 5):503\u201326.","journal-title":"Journal of anatomy"},{"issue":"3","key":"4142_CR33","doi-asserted-by":"publisher","first-page":"498.e5-9","DOI":"10.1016\/j.arth.2008.12.004","volume":"25","author":"M Idulhaq","year":"2010","unstructured":"Idulhaq M, Park KS, Diwanji SR, Yoon TR, Wie JS. Total hip arthroplasty for treatment of fused hip with 90 degrees flexion deformity. J Arthroplast. 2010;25(3):498.e5-9.","journal-title":"J Arthroplast"},{"issue":"3","key":"4142_CR34","doi-asserted-by":"publisher","first-page":"431","DOI":"10.1302\/0301-620X.81B3.0810431","volume":"81","author":"R Pradhan","year":"1999","unstructured":"Pradhan R. Planar anteversion of the acetabular cup as determined from plain anteroposterior radiographs. The Journal of bone joint surgery British volume. 1999;81(3):431\u20135.","journal-title":"The Journal of bone joint surgery British volume"},{"issue":"8","key":"4142_CR35","doi-asserted-by":"publisher","first-page":"2541","DOI":"10.1016\/j.arth.2018.03.050","volume":"33","author":"MW Morcos","year":"2018","unstructured":"Morcos MW, Hart A, Antoniou J, Huk OL, Zukor DJ, Bergeron SG. No Difference in Major Complication and Readmission Rates Following Simultaneous Bilateral vs Unilateral Total Hip Arthroplasty. J Arthroplast. 2018;33(8):2541\u20135.","journal-title":"J Arthroplast"},{"issue":"5","key":"4142_CR36","doi-asserted-by":"publisher","first-page":"438","DOI":"10.2106\/JBJS.18.00128","volume":"101","author":"D Wang","year":"2019","unstructured":"Wang D, Wang HY, Luo ZY, Pei FX, Zhou ZK, Zeng WN. Finding the Optimal Regimen for Oral Tranexamic Acid Administration in Primary Total Hip Arthroplasty: A Randomized Controlled Trial. The Journal of bone joint surgery American volume. 2019;101(5):438\u201345.","journal-title":"The Journal of bone joint surgery American volume"},{"issue":"3","key":"4142_CR37","doi-asserted-by":"publisher","first-page":"786","DOI":"10.1016\/j.arth.2017.09.062","volume":"33","author":"ZY Luo","year":"2018","unstructured":"Luo ZY, Wang HY, Wang D, Zhou K, Pei FX, Zhou ZK. Oral vs Intravenous vs Topical Tranexamic Acid in Primary Hip Arthroplasty: A Prospective, Randomized, Double-Blind, Controlled Study. J Arthroplast. 2018;33(3):786\u201393.","journal-title":"J Arthroplast"},{"issue":"8","key":"4142_CR38","doi-asserted-by":"publisher","first-page":"2474","DOI":"10.1016\/j.arth.2017.03.041","volume":"32","author":"DJ Blizzard","year":"2017","unstructured":"Blizzard DJ, Penrose CT, Sheets CZ, Seyler TM, Bolognesi MP, Brown CR. Ankylosing Spondylitis Increases Perioperative and Postoperative Complications After Total Hip Arthroplasty. J Arthroplast. 2017;32(8):2474\u20139.","journal-title":"J Arthroplast"},{"issue":"5","key":"4142_CR39","doi-asserted-by":"publisher","first-page":"538","DOI":"10.1016\/S0883-5403(99)90074-8","volume":"14","author":"YH Kim","year":"1999","unstructured":"Kim YH, Kim JS, Cho SH. Primary total hip arthroplasty with a cementless porous-coated anatomic total hip prosthesis: 10- to 12-year results of prospective and consecutive series. J Arthroplast. 1999;14(5):538\u201348.","journal-title":"J Arthroplast"},{"key":"4142_CR40","doi-asserted-by":"publisher","first-page":"344","DOI":"10.1186\/1471-2474-15-344","volume":"15","author":"W Wang","year":"2014","unstructured":"Wang W, Huang G, Huang T, Wu R. Bilaterally primary cementless total hip arthroplasty in patients with ankylosing spondylitis. BMC Musculoskelet Disord. 2014;15:344.","journal-title":"BMC Musculoskelet Disord"},{"issue":"3","key":"4142_CR41","doi-asserted-by":"publisher","first-page":"360","DOI":"10.1302\/0301-620X.96B3.32774","volume":"96-b","author":"GQ Zheng","year":"2014","unstructured":"Zheng GQ, Zhang YG, Chen JY, Wang Y. Decision making regarding spinal osteotomy and total hip replacement for ankylosing spondylitis: experience with 28 patients. The bone joint journal. 2014;96-b(3):360\u20135.","journal-title":"The bone joint journal"},{"issue":"1","key":"4142_CR42","doi-asserted-by":"publisher","first-page":"19","DOI":"10.1016\/j.ocl.2015.08.005","volume":"47","author":"DJ Blizzard","year":"2016","unstructured":"Blizzard DJ, Nickel BT, Seyler TM, Bolognesi MP. The Impact of Lumbar Spine Disease and Deformity on Total Hip Arthroplasty Outcomes. The Orthopedic clinics of North America. 2016;47(1):19\u201328.","journal-title":"The Orthopedic clinics of North America"}],"container-title":["BMC Musculoskeletal Disorders"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1186\/s12891-021-04142-7.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1186\/s12891-021-04142-7\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1186\/s12891-021-04142-7.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T04:05:35Z","timestamp":1616558735000},"score":1,"resource":{"primary":{"URL":"https:\/\/bmcmusculoskeletdisord.biomedcentral.com\/articles\/10.1186\/s12891-021-04142-7"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,3,24]]},"references-count":42,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2021,12]]}},"alternative-id":["4142"],"URL":"https:\/\/doi.org\/10.1186\/s12891-021-04142-7","relation":{"has-preprint":[{"id-type":"doi","id":"10.21203\/rs.3.rs-46810\/v1","asserted-by":"object"}]},"ISSN":["1471-2474"],"issn-type":[{"value":"1471-2474","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,3,24]]},"assertion":[{"value":"21 July 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"3 March 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"24 March 2021","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"This study has been approved by the Clinical Trials and Biomedical Ethics Committee of West China Hospital, Sichuan University. Informed consent (including patients\u2019 details, images, or videos) was obtained from all participants. All participants signed informed consents for the use of their data. All related datasets were permitted to access and use. All experiments were performed in accordance with relevant guidelines and regulations. This study was conducted in accordance with the Declaration of Helsinki.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"All data collected in this study have consent for publication.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors announced that they did not have any competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"302"}}