{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T23:27:09Z","timestamp":1790119629948,"version":"4.0.1"},"reference-count":43,"publisher":"Tohoku University Medical Press","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Tohoku J. Exp. Med."],"published-print":{"date-parts":[[2025]]},"DOI":"10.1620\/tjem.2024.j093","type":"journal-article","created":{"date-parts":[[2024,9,11]],"date-time":"2024-09-11T22:11:55Z","timestamp":1726092715000},"page":"211-219","source":"Crossref","is-referenced-by-count":24,"title":["Surgery within Two Days of Admission Reduces Complications and Mortality of Patients with Trochanteric Femur Fractures: A Japanese DPC Study"],"prefix":"10.1620","volume":"265","author":[{"given":"Hidetatsu","family":"Tanaka","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kunio","family":"Tarasawa","sequence":"additional","affiliation":[{"name":"Department of Health Administration and Policy, Tohoku University Graduate School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu","family":"Mori","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kiyohide","family":"Fushimi","sequence":"additional","affiliation":[{"name":"Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine and Dental Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenji","family":"Fujimori","sequence":"additional","affiliation":[{"name":"Department of Health Administration and Policy, Tohoku University Graduate School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshimi","family":"Aizawa","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"622","reference":[{"key":"1","doi-asserted-by":"crossref","unstructured":"Barrera, L.M., Perel, P., Ker, K., Cirocchi, R., Farinella, E. &amp; Morales Uribe, C.H.(2013)    Thromboprophylaxis for trauma patients.    <i>Cochrane Database Syst. Rev.<\/i>,    CD008303.","DOI":"10.1002\/14651858.CD008303.pub2"},{"key":"2","doi-asserted-by":"crossref","unstructured":"Bartonicek, J., Fric, V., Skala-Rosenbaum, J. &amp; Dousa, P.(2007)    Avascular necrosis of the femoral head in pertrochanteric fractures: a report of 8 cases and a review of the literature.    <i>J. Orthop. Trauma.<\/i>,    21,    229-236.","DOI":"10.1097\/BOT.0b013e31804afb0b"},{"key":"3","doi-asserted-by":"crossref","unstructured":"Baumgaertner, M.R., Curtin, S.L. &amp; Lindskog, D.M.(1998)    Intramedullary versus extramedullary fixation for the treatment of intertrochanteric hip fractures.    <i>Clin. Orthop. Relat. Res.<\/i>,    87-94.","DOI":"10.1097\/00003086-199803000-00015"},{"key":"4","doi-asserted-by":"crossref","unstructured":"Braithwaite, R.S., Col, N.F. &amp; Wong, J.B.(2003)    Estimating hip fracture morbidity, mortality and costs.    <i>J. Am. Geriatr. Soc.<\/i>,    51,    364-370.","DOI":"10.1046\/j.1532-5415.2003.51110.x"},{"key":"5","doi-asserted-by":"crossref","unstructured":"Bredahl, C., Nyholm, B., Hindsholm, K.B., Mortensen, J.S. &amp; Olesen, A.S.(1992)    Mortality after hip fracture: results of operation within 12 h of admission.    <i>Injury<\/i>,    23,    83-86.","DOI":"10.1016\/0020-1383(92)90037-S"},{"key":"6","doi-asserted-by":"crossref","unstructured":"Brox, W.T., Roberts, K.C., Taksali, S., Wright, D.G., Wixted, J.J., Tubb, C.C., Patt, J.C., Templeton, K.J., Dickman, E., Adler, R.A., Macaulay, W.B., Jackman, J.M., Annaswamy, T., Adelman, A.M., Hawthorne, C.G., et al. (2015)    The American Academy of Orthopaedic Surgeons Evidence-Based Guideline on Management of Hip Fractures in the Elderly.    <i>J. Bone Joint Surg. Am.<\/i>,    97,    1196-1199.","DOI":"10.2106\/JBJS.O.00229"},{"key":"7","doi-asserted-by":"crossref","unstructured":"Bukata, S.V., Digiovanni, B.F., Friedman, S.M., Hoyen, H., Kates, A., Kates, S.L., Mears, S.C., Mendelson, D.A., Serna, F.H. Jr., Sieber, F.E. &amp; Tyler, W.K.(2011)    A guide to improving the care of patients with fragility fractures.    <i>Geriatr. Orthop. Surg. Rehabil.<\/i>,    2,    5-37.","DOI":"10.1177\/2151458510397504"},{"key":"8","doi-asserted-by":"crossref","unstructured":"Burge, R., Dawson-Hughes, B., Solomon, D.H., Wong, J.B., King, A. &amp; Tosteson, A.(2007)    Incidence and economic burden of osteoporosis-related fractures in the United States, 2005-2025.    <i>J. Bone Miner. Res.<\/i>,    22,    465-475.","DOI":"10.1359\/jbmr.061113"},{"key":"9","doi-asserted-by":"crossref","unstructured":"Chiang, C.H., Liu, C.J., Chen, P.J., Huang, C.C., Hsu, C.Y., Chen, Z.Y., Chan, W.L., Huang, P.H., Chen, T.J., Chung, C.M., Lin, S.J., Chen, J.W. &amp; Leu, H.B.(2013)    Hip fracture and risk of acute myocardial infarction: a nationwide study.    <i>J. Bone Miner. Res.<\/i>,    28,    404-411.","DOI":"10.1002\/jbmr.1714"},{"key":"10","doi-asserted-by":"crossref","unstructured":"Falck-Ytter, Y., Francis, C.W., Johanson, N.A., Curley, C., Dahl, O.E., Schulman, S., Ortel, T.L., Pauker, S.G. &amp; Colwell, C.W. Jr. (2012)    Prevention of VTE in orthopedic surgery patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines.    <i>Chest<\/i>,    141,    e278S-e325S.","DOI":"10.1378\/chest.11-2404"},{"key":"11","doi-asserted-by":"crossref","unstructured":"Forster, R. &amp; Stewart, M.(2016)    Anticoagulants (extended duration) for prevention of venous thromboembolism following total hip or knee replacement or hip fracture repair.    <i>Cochrane Database Syst. Rev.<\/i>,    3,    CD004179.","DOI":"10.1002\/14651858.CD004179.pub2"},{"key":"12","doi-asserted-by":"crossref","unstructured":"Fu, M.C., Boddapati, V., Gausden, E.B., Samuel, A.M., Russell, L.A. &amp; Lane, J.M.(2017)    Surgery for a fracture of the hip within 24 hours of admission is independently associated with reduced short-term post-operative complications.    <i>Bone Joint J.<\/i>,    99-B,    1216-1222.","DOI":"10.1302\/0301-620X.99B9.BJJ-2017-0101.R1"},{"key":"13","doi-asserted-by":"crossref","unstructured":"Geerds, M.A.J., Folbert, E.C., Visschedijk, S.F.M., Klunder, M.B., Vollenbroek-Hutten, M.M.R. &amp; Hegeman, J.H.(2022)    Implementation of a pneumonia prevention protocol to decrease the incidence of postoperative pneumonia in patients after hip fracture surgery.    <i>Injury<\/i>,    53,    2818-2822.","DOI":"10.1016\/j.injury.2022.06.017"},{"key":"14","doi-asserted-by":"crossref","unstructured":"Giannoulis, D., Calori, G.M. &amp; Giannoudis, P.V.(2016)    Thirty-day mortality after hip fractures: has anything changed?    <i>Eur. J. Orthop. Surg. Traumatol.<\/i>,    26,    365-370.","DOI":"10.1007\/s00590-016-1744-4"},{"key":"15","doi-asserted-by":"crossref","unstructured":"Grimes, J.P., Gregory, P.M., Noveck, H., Butler, M.S. &amp; Carson, J.L.(2002)    The effects of time-to-surgery on mortality and morbidity in patients following hip fracture.    <i>Am. J. Med.<\/i>,    112,    702-709.","DOI":"10.1016\/S0002-9343(02)01119-1"},{"key":"16","doi-asserted-by":"crossref","unstructured":"Halonen, L.M., Stenroos, A., Vasara, H. &amp; Kosola, J.(2022)    Intramedullary Fixation of Trochanteric Fractures Can Be Safely Performed by Senior Residents Without Immediate Consultant Supervision.    <i>J. Surg. Educ.<\/i>,    79,    260-265.","DOI":"10.1016\/j.jsurg.2021.06.026"},{"key":"17","doi-asserted-by":"crossref","unstructured":"Holt, G., Smith, R., Duncan, K. &amp; McKeown, D.W.(2010)    Does delay to theatre for medical reasons affect the peri-operative mortality in patients with a fracture of the hip?    <i>J. Bone Joint Surg. Br.<\/i>,    92,    835-841.","DOI":"10.1302\/0301-620X.92B6.24463"},{"key":"18","doi-asserted-by":"crossref","unstructured":"Khan, S.K., Kalra, S., Khanna, A., Thiruvengada, M.M. &amp; Parker, M.J.(2009)    Timing of surgery for hip fractures: a systematic review of 52 published studies involving 291,413 patients.    <i>Injury<\/i>,    40,    692-697.","DOI":"10.1016\/j.injury.2009.01.010"},{"key":"19","doi-asserted-by":"crossref","unstructured":"Kitamura, S., Hasegawa, Y., Suzuki, S., Sasaki, R., Iwata, H., Wingstrand, H. &amp; Thorngren, K.G.(1998)    Functional outcome after hip fracture in Japan.    <i>Clin. Orthop. Relat. Res.<\/i>,    29-36.","DOI":"10.1097\/00003086-199803000-00007"},{"key":"20","doi-asserted-by":"crossref","unstructured":"Lawrence, V.A., Hilsenbeck, S.G., Noveck, H., Poses, R.M. &amp; Carson, J.L.(2002)    Medical complications and outcomes after hip fracture repair.    <i>Arch. Intern. Med.<\/i>,    162,    2053-2057.","DOI":"10.1001\/archinte.162.18.2053"},{"key":"21","doi-asserted-by":"crossref","unstructured":"Madsen, J.E., Naess, L., Aune, A.K., Alho, A., Ekeland, A. &amp; Stromsoe, K.(1998)    Dynamic hip screw with trochanteric stabilizing plate in the treatment of unstable proximal femoral fractures: a comparative study with the Gamma nail and compression hip screw.    <i>J. Orthop. Trauma<\/i>,    12,    241-248.","DOI":"10.1097\/00005131-199805000-00005"},{"key":"22","unstructured":"Matsuda,  S. .(2016)    Development of Case Mix Based Evaluation System in Japan.    <i>Jpn. Hosp.<\/i>,    35-44."},{"key":"23","doi-asserted-by":"crossref","unstructured":"Mine, Y., Fujino, Y., Sabanai, K., Muramatsu, K., Otani, M., Kubo, T., Fushimi, K. &amp; Matsuda, S.(2020)    Effectiveness of regional clinical pathways on postoperative length of stay for hip fracture patients: A retrospective observational study using the Japanese Diagnosis Procedure Combination database.    <i>J. Orthop. Sci.<\/i>,    25,    127-131.","DOI":"10.1016\/j.jos.2019.02.002"},{"key":"24","doi-asserted-by":"crossref","unstructured":"Moja, L., Piatti, A., Pecoraro, V., Ricci, C., Virgili, G., Salanti, G., Germagnoli, L., Liberati, A. &amp; Banfi, G. (2012)    Timing matters in hip fracture surgery: patients operated within 48 hours have better outcomes. A meta-analysis and meta-regression of over 190,000 patients.    <i>PLoS One<\/i>,    7,    e46175.","DOI":"10.1371\/journal.pone.0046175"},{"key":"25","doi-asserted-by":"crossref","unstructured":"Mori, Y., Tarasawa, K., Tanaka, H., Mori, N., Fushimi, K., Fujimori, K. &amp; Aizawa, T.(2024a)    Does total hip arthroplasty in elderly patients with femoral neck fractures reduce complications?: A Japanese DPC study.    <i>J. Orthop. Sci.<\/i>,    S0949-2658,    00137 [in press].","DOI":"10.1016\/j.jos.2024.06.011"},{"key":"26","doi-asserted-by":"crossref","unstructured":"Mori, Y., Tarasawa, K., Tanaka, H., Mori, N., Fushimi, K., Fujimori, K. &amp; Aizawa, T.(2024b)    Surgery on admission and following day reduces hip fracture complications: a Japanese DPC study.    <i>J. Bone Miner. Metab.<\/i>,    42,    608-615.","DOI":"10.1007\/s00774-024-01534-2"},{"key":"27","doi-asserted-by":"crossref","unstructured":"Novack, V., Jotkowitz, A., Etzion, O. &amp; Porath, A.(2007)    Does delay in surgery after hip fracture lead to worse outcomes? A multicenter survey.    <i>Int. J. Qual. Health Care<\/i>,    19,    170-176.","DOI":"10.1093\/intqhc\/mzm003"},{"key":"28","doi-asserted-by":"crossref","unstructured":"Orimo, H., Yaegashi, Y., Hosoi, T., Fukushima, Y., Onoda, T., Hashimoto, T. &amp; Sakata, K.(2016)    Hip fracture incidence in Japan: Estimates of new patients in 2012 and 25-year trends.    <i>Osteoporos. Int.<\/i>,    27,    1777-1784.","DOI":"10.1007\/s00198-015-3464-8"},{"key":"29","doi-asserted-by":"crossref","unstructured":"Parker, M.J. &amp; Pryor, G.A.(1992)    The timing of surgery for proximal femoral fractures.    <i>J. Bone Joint Surg. Br.<\/i>,    74,    203-205.","DOI":"10.1302\/0301-620X.74B2.1544952"},{"key":"30","doi-asserted-by":"crossref","unstructured":"Pedersen, A.B., Christiansen, C.F., Gammelager, H., Kahlert, J. &amp; Sorensen, H.T.(2016)    Risk of acute renal failure and mortality after surgery for a fracture of the hip: a population-based cohort study.    <i>Bone Joint J.<\/i>,    98-B,    1112-1118.","DOI":"10.1302\/0301-620X.98B8.37497"},{"key":"31","doi-asserted-by":"crossref","unstructured":"Pincus, D., Ravi, B., Wasserstein, D., Huang, A., Paterson, J.M., Nathens, A.B., Kreder, H.J., Jenkinson, R.J. &amp; Wodchis, W.P.(2017)    Association Between Wait Time and 30-Day Mortality in Adults Undergoing Hip Fracture Surgery.    <i>JAMA<\/i>,    318,    1994-2003.","DOI":"10.1001\/jama.2017.17606"},{"key":"32","doi-asserted-by":"crossref","unstructured":"Rosso, F., Dettoni, F., Bonasia, D.E., Olivero, F., Mattei, L., Bruzzone, M., Marmotti, A. &amp; Rossi, R.(2016)    Prognostic factors for mortality after hip fracture: Operation within 48 hours is mandatory.    <i>Injury<\/i>,    47 Suppl 4,    S91-S97.","DOI":"10.1016\/j.injury.2016.07.055"},{"key":"33","doi-asserted-by":"crossref","unstructured":"Sasabuchi, Y., Matsui, H., Lefor, A.K., Fushimi, K. &amp; Yasunaga, H.(2018)    Timing of surgery for hip fractures in the elderly: A retrospective cohort study.    <i>Injury<\/i>,    49,    1848-1854.","DOI":"10.1016\/j.injury.2018.07.026"},{"key":"34","doi-asserted-by":"crossref","unstructured":"Sathiyakumar, V., Greenberg, S.E., Molina, C.S., Thakore, R.V., Obremskey, W.T. &amp; Sethi, M.K.(2015)    Hip fractures are risky business: an analysis of the NSQIP data.    <i>Injury<\/i>,    46,    703-708.","DOI":"10.1016\/j.injury.2014.10.051"},{"key":"35","doi-asserted-by":"crossref","unstructured":"Sheehan, K.J., Sobolev, B., Villan Villan, Y.F. &amp; Guy, P.(2017)    Patient and system factors of time to surgery after hip fracture: a scoping review.    <i>BMJ Open<\/i>,    7,    e016939.","DOI":"10.1136\/bmjopen-2017-016939"},{"key":"36","doi-asserted-by":"crossref","unstructured":"Shiga, T., Wajima, Z. &amp; Ohe, Y.(2008)    Is operative delay associated with increased mortality of hip fracture patients? Systematic review, meta-analysis, and meta-regression.    <i>Can. J. Anaesth.<\/i>,    55,    146-154.","DOI":"10.1007\/BF03016088"},{"key":"37","doi-asserted-by":"crossref","unstructured":"Simunovic, N., Devereaux, P.J., Sprague, S., Guyatt, G.H., Schemitsch, E., Debeer, J. &amp; Bhandari, M.(2010)    Effect of early surgery after hip fracture on mortality and complications: systematic review and meta-analysis.    <i>CMAJ<\/i>,    182,    1609-1616.","DOI":"10.1503\/cmaj.092220"},{"key":"38","doi-asserted-by":"crossref","unstructured":"Smektala, R., Endres, H.G., Dasch, B., Maier, C., Trampisch, H.J., Bonnaire, F. &amp; Pientka, L.(2008)    The effect of time-to-surgery on outcome in elderly patients with proximal femoral fractures.    <i>BMC Musculoskelet. Disord.<\/i>,    9,    171.","DOI":"10.1186\/1471-2474-9-171"},{"key":"39","doi-asserted-by":"crossref","unstructured":"Takusari, E., Sakata, K., Hashimoto, T., Fukushima, Y., Nakamura, T. &amp; Orimo, H.(2021)    Trends in Hip Fracture Incidence in Japan: Estimates Based on Nationwide Hip Fracture Surveys From 1992 to 2017.    <i>JBMR Plus<\/i>,    5,    e10428.","DOI":"10.1002\/jbm4.10428"},{"key":"40","doi-asserted-by":"crossref","unstructured":"Tamaki, J., Fujimori, K., Ikehara, S., Kamiya, K., Nakatoh, S., Okimoto, N., Ogawa, S., Ishii, S., Iki, M. &amp; Working Group of Japan Osteoporosis, F.(2019)    Estimates of hip fracture incidence in Japan using the National Health Insurance Claim Database in 2012-2015.    <i>Osteoporos. Int.<\/i>,    30,    975-983.","DOI":"10.1007\/s00198-019-04844-8"},{"key":"41","doi-asserted-by":"crossref","unstructured":"Tomioka, S., Rosenberg, M., Fushimi, K. &amp; Matsuda, S.(2020)    An analysis of equity in treatment of hip fractures for older patients with dementia in acute care hospitals: observational study using nationwide hospital claims data in Japan.    <i>BMC Health Serv. Res.<\/i>,    20,    830.","DOI":"10.1186\/s12913-020-05690-9"},{"key":"42","doi-asserted-by":"crossref","unstructured":"Yamamoto, N., Sawaguchi, T., Matsushita, T., Katoh, N., Arai, H., Shirahama, M., Endo, N., Hagino, H., Mori, S., Teramoto, T., Ookuro, M., Hiraoka, M. &amp; Takahashi, H.E.(2024)    Fragility Fracture Network-Japan: The challenge of establishment of a national hip fracture database and successful achievement of nationwide health system change for hip fracture care in Japan.    <i>Injury<\/i>,    55,    111452.","DOI":"10.1016\/j.injury.2024.111452"},{"key":"43","doi-asserted-by":"crossref","unstructured":"Yamamoto, N., Yamakawa, Y., Inokuchi, T., Iwamoto, Y., Inoue, T., Noda, T., Kawasaki, K. &amp; Ozaki, T.(2022)    Hip fractures following intramedullary nailing fixation for femoral fractures.    <i>Injury<\/i>,    53,    1190-1195.","DOI":"10.1016\/j.injury.2021.10.024"}],"container-title":["The Tohoku Journal of Experimental Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.jstage.jst.go.jp\/article\/tjem\/265\/4\/265_2024.J093\/_pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,19]],"date-time":"2025-04-19T03:45:36Z","timestamp":1745034336000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.jstage.jst.go.jp\/article\/tjem\/265\/4\/265_2024.J093\/_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025]]},"references-count":43,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2025]]}},"URL":"https:\/\/doi.org\/10.1620\/tjem.2024.j093","relation":{},"ISSN":["0040-8727","1349-3329"],"issn-type":[{"value":"0040-8727","type":"print"},{"value":"1349-3329","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025]]},"article-number":"2024.J093"}}