{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T05:55:21Z","timestamp":1769752521439,"version":"3.49.0"},"reference-count":25,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2024,12,19]],"date-time":"2024-12-19T00:00:00Z","timestamp":1734566400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Surg."],"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>By comparing the hip arthroplasty parameters planned with the AIHIP three-dimensional simulation surgery system, this study analyzes the accuracy of the new femoral-side \u201cshoulder-to-shoulder\u201d artificial anatomical marker positioning method in femoral-side prosthesis implantation and the prevention of leg length discrepancy in hip arthroplasty.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective collection of 47 patients who underwent initial total hip arthroplasty at our hospital from August 2020 to December 2022 and met the inclusion and exclusion criteria was used as the study subjects. The average age was 67.34\u2009\u00b1\u200910.86 years (32\u201380 years), including 17 males and 30 females; 25 cases on the left side and 22 cases on the right side. According to the Garden classification for fractures: 4 cases of type II, 4 cases of type III, and 21 cases of type IV; according to the ARCO staging for femoral head necrosis: 1 case of stage III and 6 cases of stage IV; according to the Crowe classification: 2 cases of type I and 3 cases of type II; according to the K-L grading: 2 cases of stage III and 4 cases of stage IV. The postoperative pelvic anteroposterior x-ray measurement parameters and prosthesis model results guided by the new \u201cshoulder-to-shoulder\u201d artificial anatomical marker positioning method (\u201cshoulder-to-shoulder\u201d group) were compared with the corresponding parameter results planned by the AIHIP three-dimensional simulation surgery system (AIHIP simulation surgery group). All postoperative pelvic anteroposterior x-ray measurement parameters were corrected according to the radiographic magnification, and the differences in bilateral lower limb length, tip-to-shoulder distance, and osteotomy distance between the two groups were compared. The paired <jats:italic>t<\/jats:italic>-test was used to compare the differences in bilateral lower limb length, tip-to-shoulder distance, and osteotomy distance; descriptive analysis was used to evaluate the consistency of prosthesis model matching.alpha\u2009=\u20090.05 (both sides).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The differences in bilateral lower limb length for the \u201cshoulder-to-shoulder\u201d group and the AIHIP simulation surgery group were 1.07\u2009\u00b1\u20091.18\u2005mm and 1.28\u2009\u00b1\u20092.41\u2005mm, respectively, with a difference of \u22120.28\u2009\u00b1\u20092.16\u2005mm between the two groups. The paired <jats:italic>t<\/jats:italic>-test results showed no statistically significant difference (<jats:italic>P<\/jats:italic>\u2009=\u20090.508). The tip-to-shoulder distance and osteotomy distance for the \u201cshoulder-to-shoulder\u201d group were 15.93\u2009\u00b1\u20092.96\u2005mm and 7.81\u2009\u00b1\u20092.73\u2005mm, respectively, while the corresponding parameters for the AIHIP simulation surgery group were 17.70\u2009\u00b1\u20093.39\u2005mm and 9.21\u2009\u00b1\u20094.05\u2005mm. The differences in tip-to-shoulder distance and osteotomy distance between the \u201cshoulder-to-shoulder\u201d group and the AIHIP simulation surgery group were \u22121.78\u2009\u00b1\u20092.54\u2005mm and \u22121.22\u2009\u00b1\u20093.17\u2005mm, respectively. The paired <jats:italic>t<\/jats:italic>-test results showed statistically significant differences in the comparison of tip-to-shoulder distance and osteotomy distance between the two groups (both <jats:italic>P<\/jats:italic>\u2009&amp;lt;\u20090.01). The matching rates of acetabular and femoral prosthesis models were 91.48% and 95.74%, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The new artificial anatomical marker positioning method (shoulder-to-shoulder) and the AIHIP three-dimensional simulation surgery method show good consistency in preventing leg length discrepancy in hip arthroplasty. This proves that using this method can accurately implant the femoral-side prosthesis during surgery and prevent postoperative leg length discrepancy.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fsurg.2024.1487716","type":"journal-article","created":{"date-parts":[[2024,12,19]],"date-time":"2024-12-19T06:26:39Z","timestamp":1734589599000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["Accuracy analysis of the new artificial anatomical marker positioning method (shoulder-to-shoulder) in preventing leg length discrepancy in total hip arthroplasty"],"prefix":"10.3389","volume":"11","author":[{"given":"Wang","family":"Ze-feng","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fang","family":"Yang-zhen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zheng","family":"Yong-qiang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Zhen-yu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Liang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liu","family":"Xiao-feng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhang","family":"Chi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhang","family":"Jin-shan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2024,12,19]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1560","DOI":"10.1001\/jama.2011.478","article-title":"Clinical characteristics and outcomes of medicare patients undergoing total hip arthroplasty, 1991\u20132008","volume":"305","author":"Cram","year":"2011","journal-title":"JAMA"},{"key":"B2","doi-asserted-by":"publisher","first-page":"43","DOI":"10.21037\/atm.2017.01.73","article-title":"Templating in uncemented total hip arthroplasty-on intra- and interobserver reliability and professional experience","volume":"5","author":"Str\u00f8m","year":"2017","journal-title":"Ann Transl Med"},{"key":"B3","first-page":"163","article-title":"Radiological aspects in preoperative planning and postoperative assessment of cementless total hip arthroplasty","volume":"59","author":"Linclau","year":"1993","journal-title":"Acta Orthop Belg"},{"key":"B4","doi-asserted-by":"publisher","first-page":"592","DOI":"10.1308\/003588408X318101","article-title":"Assessment of magnification of digital pelvic radiographs in total hip arthroplasty using templating software","volume":"90","author":"White","year":"2008","journal-title":"Ann R Coll Surg Engl"},{"key":"B5","doi-asserted-by":"publisher","first-page":"909","DOI":"10.1007\/s11999-008-0486-y","article-title":"A new digital preoperative planning method for total hip arthroplasties","volume":"467","author":"Crooijmans","year":"2008","journal-title":"Clin Orthop Relat Res"},{"key":"B6","doi-asserted-by":"publisher","first-page":"3530","DOI":"10.3969\/j.issn.1009-5519.2013.23.005","article-title":"Accuracy of preoperative digital templating on selecting prosthesis size in total hip replacement","volume":"29","author":"Zhu","year":"2013","journal-title":"J Mod Med Health"},{"key":"B7","doi-asserted-by":"publisher","first-page":"420","DOI":"10.3969\/j.issn.1674-134X.2008.04.011","article-title":"Comparsion of fidelity in preoperative planning of total hip replacement between digital templating and hard-copy templating","volume":"2","author":"Ma","year":"2008","journal-title":"Chin J Joint Surg"},{"key":"B8","doi-asserted-by":"publisher","first-page":"157","DOI":"10.3969\/j.issn.1674-134X.2007.03.009","article-title":"Valuation and modification of digital template in the accuracy of selection of hip prosthesis","volume":"1","author":"Xu","year":"2007","journal-title":"Chin J Joint Surg"},{"key":"B9","doi-asserted-by":"publisher","first-page":"607","DOI":"10.1080\/08941939.2018.1444828","article-title":"Value of computed tomography-based three dimensional preoperative planning in cup placement in total hip arthroplasty with dysplastic acetabulum","volume":"32","author":"Wu","year":"2019","journal-title":"J Invest Surg"},{"key":"B10","doi-asserted-by":"publisher","first-page":"2060","DOI":"10.1016\/j.arth.2022.12.017","article-title":"Artificially intelligent three-dimensionally-printed patient-specific instrument improves total hip arthroplasty accuracy","volume":"38","author":"Chen","year":"2022","journal-title":"J Arthrop"},{"key":"B11","doi-asserted-by":"publisher","first-page":"1077","DOI":"10.7507\/1002-1892.202005007","article-title":"Research and application of artificial intelligence based three-dimensional preoperative planning system for total hip arthroplasty","volume":"34","author":"Wu","year":"2020","journal-title":"Chin J Reparative Reconstr Surg"},{"key":"B12","doi-asserted-by":"publisher","first-page":"1265","DOI":"10.7507\/1002-1892.202106103","article-title":"Artificial intelligence assisted total hip arthroplasty for patients with Crowe type \u2163 developmental dysplasia of the hip","volume":"35","author":"Xia","year":"2021","journal-title":"Chin J Reparative Reconstr Surg"},{"key":"B13","doi-asserted-by":"publisher","first-page":"841202","DOI":"10.3389\/fmed.2022.841202","article-title":"Development and validation of an artificial intelligence preoperative planning system for total hip arthroplasty","volume":"9","author":"Chen","year":"2022","journal-title":"Front Med (Lausanne)"},{"key":"B14","doi-asserted-by":"publisher","first-page":"e1297","DOI":"10.5435\/JAAOS-D-22-00273","article-title":"AAOS management of hip fractures in older adults evidence-based clinical practice guideline","volume":"30","author":"Switzer","year":"2022","journal-title":"J Am Acad Orthop Surg"},{"key":"B15","doi-asserted-by":"publisher","first-page":"1012","DOI":"10.12200\/j.issn.1003-0034.2020.11.005","article-title":"Comparison of measurement methods of lower limb length in hip arthroplasty for femoral neck fracture","volume":"33","author":"Zhang","year":"2020","journal-title":"Chin J Orthop Traumatol"},{"key":"B16","doi-asserted-by":"publisher","first-page":"269","DOI":"10.1302\/0301-620X.84B2.0840269","article-title":"A simple guide to determine the magnification of radiographs and to improve the accuracy of preoperative templating","volume":"84","author":"Conn","year":"2002","journal-title":"J Bone Joint Surg Br"},{"key":"B17","doi-asserted-by":"publisher","first-page":"276","DOI":"10.1016\/j.gaitpost.2020.02.008","article-title":"Effect of femoral offset and limb length discrepancy on hip joint muscle strength and gait trajectory after total hip arthroplasty","volume":"77","author":"Sato","year":"2020","journal-title":"Gait Posture"},{"key":"B18","doi-asserted-by":"publisher","first-page":"715","DOI":"10.1054\/arth.2001.24442","article-title":"Correction of limb-length inequality during total hip arthroplasty","volume":"16","author":"Ranawat","year":"2001","journal-title":"J Arthrop"},{"key":"B19","doi-asserted-by":"publisher","first-page":"429","DOI":"10.1007\/s11999-010-1554-7","article-title":"Hip offset in total hip arthroplasty: quantitative measurement with navigation","volume":"469","author":"Dastane","year":"2011","journal-title":"Clin Orthop Relat Res"},{"key":"B20","doi-asserted-by":"publisher","first-page":"196","DOI":"10.1016\/j.gaitpost.2016.07.011","article-title":"Leg length and offset differences above 5\u2005mm after total hip arthroplasty are associated with altered gait kinematics","volume":"49","author":"Renkawitz","year":"2016","journal-title":"Gait Posture"},{"key":"B21","first-page":"133","volume-title":"Imaging of the Hip & Bony Pelvis","author":"Davies","year":"2006"},{"key":"B22","doi-asserted-by":"publisher","first-page":"809","DOI":"10.3969\/j.issn.1672-9935.2008.10.006","article-title":"Clinic research on accurate limb length equalization in total hip replacement","volume":"23","author":"Zhang","year":"2008","journal-title":"Chin J Bone Joint Injury"},{"key":"B23","doi-asserted-by":"publisher","first-page":"1030657","DOI":"10.3389\/fsurg.2022.1030657","article-title":"A novel method of manual positioning based on anatomical mark (shoulder-to-shoulder) to prevent postoperative leg-length discrepancy for femoral neck fractures in hip arthroplasty","volume":"9","author":"Zhang","year":"2022","journal-title":"Front Surg"},{"key":"B24","doi-asserted-by":"publisher","first-page":"2548","DOI":"10.1016\/j.injury.2017.08.065","article-title":"Reliable anatomical landmarks for minimizing leg-length discrepancy during hip arthroplasty using the lateral transgluteal approach for femoral neck fracture","volume":"48","author":"Kim","year":"2017","journal-title":"Injury"},{"key":"B25","doi-asserted-by":"publisher","first-page":"1601","DOI":"10.2147\/CIA.S214935","article-title":"A simple method to minimize leg length discrepancy in hip hemiarthroplasty","volume":"14","author":"Wang","year":"2019","journal-title":"Clin Interv Aging"}],"container-title":["Frontiers in Surgery"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fsurg.2024.1487716\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,12,19]],"date-time":"2024-12-19T06:26:47Z","timestamp":1734589607000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fsurg.2024.1487716\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,12,19]]},"references-count":25,"alternative-id":["10.3389\/fsurg.2024.1487716"],"URL":"https:\/\/doi.org\/10.3389\/fsurg.2024.1487716","relation":{},"ISSN":["2296-875X"],"issn-type":[{"value":"2296-875X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,12,19]]},"article-number":"1487716"}}