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MRI protocols included 3D ultrashort echo time (UTE), slice-encoding for metal artifact correction (SEMAC), and 3D double-echo steady-state (DESS). Two independent maxillofacial surgeons performed qualitative and quantitative evaluations of fracture reduction, osteosynthesis material positioning, and implant morphology using a 5-point visual scale (5\u2009=\u2009best; 1\u2009=\u2009non-assessable) and dimensional measurements. Descriptive statistics were calculated, and inter-reader agreement was assessed using weighted kappa (\u03ba) and intraclass correlation coefficients (ICC).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      UTE and SEMAC sequences provided excellent CT-like performance in visualizing fracture reduction and implant positioning (median 5, IQR 5\u20135 and 4\u20135, respectively), with minimal absolute differences in quantitative measurements and substantial to almost perfect inter-reader agreement (\u03ba\u2009=\u20090.75-1.0; ICC\u2009=\u20090.89\u20130.99; all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). In contrast, DESS demonstrated limited utility for assessing metallic implants due to pronounced signal voids and susceptibility artifacts.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>UTE and SEMAC provide high-quality, radiation-free imaging for evaluating fracture reduction and osteosynthesis material in cranio-maxillofacial trauma. These techniques demonstrate comparable diagnostic performance to intraoperative CBCT in a postoperative setting. They may serve as a radiation-free alternative for perioperative imaging in younger patients with anticipated repeated imaging needs, pending prospective intraoperative validation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration number<\/jats:title>\n                    <jats:p>Swiss National Clinical Trials Portal: SNCTP000006343, ClinicalTrials.gov ID: NCT07012850, Registration date: May 2025.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s10006-026-01588-8","type":"journal-article","created":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T03:44:18Z","timestamp":1782445458000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Intraoperative C-arm CBCT versus early postoperative MRI for the assessment of fracture reduction and osteosynthesis material positioning in cranio-maxillofacial trauma surgery"],"prefix":"10.1007","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7895-1461","authenticated-orcid":false,"given":"Adib","family":"Al-Haj Husain","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sameena","family":"Sandhu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Egon","family":"Burian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc M.","family":"Precht","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Sommer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Frauenfelder","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maximilian Eberhard Hermann","family":"Wagner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Harald","family":"Essig","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,6,26]]},"reference":[{"issue":"2","key":"1588_CR1","doi-asserted-by":"publisher","first-page":"198","DOI":"10.1016\/j.ijom.2020.05.006","volume":"50","author":"SL Assouline","year":"2021","unstructured":"Assouline SL, Meyer C, Weber E, Chatelain B, Barrabe A, Sigaux N et al (2021) How useful is intraoperative cone beam computed tomography in maxillofacial surgery? 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