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Fracture location, cortical and canal displacement, and nerve function were recorded. Receiver operating characteristic (ROC) curve and logistic regression analyses evaluated associations between displacement thresholds and IAN injury risk.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 208 patients (237 fractures) were included; preoperative IAN deficits occurred in 74\/237 fractures (31.2%) and persisted at \u2265\u20096 months in 3\/237 fractures (1.3%). ROC analysis yielded area under the curve (AUC) values of 0.71, 0.73, 0.75, and 0.75 for cortical displacement cut-offs of &gt;\u20093.60\u00a0mm (transverse), &gt; 1.68\u00a0mm (sagittal), &gt; 1.29\u00a0mm (vertical), and &gt;\u20099.61\u00a0mm (summed displacement), respectively. Multivariate logistic regression demonstrated that exceeding these thresholds was associated with significantly increased risk of IAN hypoesthesia \u2013 OR 6.4, 4.8, 6.8, and 7.9, respectively (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). Mandibular canal displacement showed limited predictive value for IAN hypoesthesia, with ROC AUCs of 0.63 (axial), 0.63 (coronal), 0.64 (sagittal), and 0.64 (summed displacement).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion and Clinical Relevance<\/jats:title>\n                    <jats:p>This study establishes specific, plane-based CT displacement thresholds that may help to identify mandibular fractures at high risk of IAN injury. Our proposed CT-based classification enables objective preoperative risk stratification, enhances patient counseling, guides surgical decision-making, and supports the standardized medico-legal assessment of potential permanent sensory deficits.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00784-026-07002-7","type":"journal-article","created":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T07:23:56Z","timestamp":1784273036000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Preoperative CT displacement predicts inferior alveolar nerve injury in mandibular fractures: a tool for clinical risk stratification"],"prefix":"10.1007","volume":"30","author":[{"given":"Lucas M","family":"Ritschl","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bastian","family":"Schwaiberger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katharina","family":"Pippich","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jannik","family":"Ketschau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Victoria","family":"Kehl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolff","family":"Klaus-Dietrich","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Probst","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreas","family":"Fichter","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan","family":"Mohr","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,7,17]]},"reference":[{"key":"7002_CR1","doi-asserted-by":"publisher","first-page":"1079","DOI":"10.1007\/S00106-011-2387-8","volume":"59","author":"W Waiss","year":"2011","unstructured":"Waiss W, Gosau M, Koyama K, Reichert TE (2011) Frakturen von Maxilla und Mandibula: Kieferchirurgische Behandlungskonzepte. 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