{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T20:16:12Z","timestamp":1792095372210,"version":"4.4.0"},"reference-count":55,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,19]],"date-time":"2022-08-19T00:00:00Z","timestamp":1660867200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Specified Nonprofit Corporation, Okayama Trauma Group"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Failed internal fixations for trochanteric fractures have a strong negative impact owing to increased postoperative mortality and high medical costs. However, evidence on the prognostic value of postoperative radiographic findings for failed internal fixations is limited. We aimed to clarify the association between comprehensive immediate postoperative radiographic findings and failed internal fixation using relative and absolute risk measures. We followed the meta-analysis of observational studies in epidemiology guidelines and the Cochrane handbook. We searched specific databases in November 2021. The outcomes of interest were failed internal fixation and cut-out. We pooled the odds ratios and 95% confidence intervals using a random-effects model and calculated the number needed to harm for each outcome. Thirty-six studies involving 8938 patients were included. The certainty of evidence in the association between postoperative radiographic findings and failed internal fixation or cut-out was mainly low or very low except for the association between intramedullary malreduction on the anteromedial cortex and failed internal fixation. Moderate certainty of evidence supported that intramedullary malreduction on the anteromedial cortex was associated with failed internal fixation. Most postoperative radiographic findings on immediate postoperative radiographs for trochanteric fractures were uncertain as prognostic factors for failed internal fixations.<\/jats:p>","DOI":"10.3390\/jcm11164879","type":"journal-article","created":{"date-parts":[[2022,8,21]],"date-time":"2022-08-21T23:51:01Z","timestamp":1661125861000},"page":"4879","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Association between Immediate Postoperative Radiographic Findings and Failed Internal Fixation for Trochanteric Fractures: Systematic Review and Meta-Analysis"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7902-9994","authenticated-orcid":false,"given":"Norio","family":"Yamamoto","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, Miyamoto Orthopedic Hospital, Okayama 773-8236, Japan"},{"name":"Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan"},{"name":"Scientific Research Works Peer Support Group (SRWS-PSG), Osaka 541-0043, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasushi","family":"Tsujimoto","sequence":"additional","affiliation":[{"name":"Scientific Research Works Peer Support Group (SRWS-PSG), Osaka 541-0043, Japan"},{"name":"Departments of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine\/School of Public Health, Kyoto 606-8501, Japan"},{"name":"Oku Medical Clinic, Osaka 573-0164, Japan"},{"name":"Cochrane Japan, Tokyo 104-0044, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1678-8763","authenticated-orcid":false,"given":"Suguru","family":"Yokoo","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, National Hospital Organization Okayama Medical Center, Okayama 701-1192, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koji","family":"Demiya","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Tsuyama Chuo Hospital, Okayama 708-0841, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Madoka","family":"Inoue","sequence":"additional","affiliation":[{"name":"Scientific Research Works Peer Support Group (SRWS-PSG), Osaka 541-0043, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7066-1774","authenticated-orcid":false,"given":"Tomoyuki","family":"Noda","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery and Traumatology, Kawasaki Medical School General Medical Center, Okayama 700-8505, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1732-9307","authenticated-orcid":false,"given":"Toshifumi","family":"Ozaki","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama 700-8530, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takashi","family":"Yorifuji","sequence":"additional","affiliation":[{"name":"Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"15","DOI":"10.4103\/0019-5413.73656","article-title":"Epidemiology of hip fracture: Worldwide geographic variation","volume":"45","author":"Dhanwal","year":"2011","journal-title":"Indian J. 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