ArticleJournal of experimental orthopaedics2026
Posterior tibial slope interpretation is method-dependent: No universal threshold for defining abnormality in primary and recurrent ACL rupture.
Article in Journal of experimental orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Posterior tibial slope is associated with ACL status rather than demographic factors: A cohort of 1406 patients.Journal of experimental orthopaedics · 2026Article
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7 authors.
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Abstract
Purpose: To determine method-specific normal posterior tibial slope (PTS) values, define abnormal PTS using two statistical approaches, and assess how abnormal PTS classification varies in primary anterior cruciate ligament (ACL) rupture and ACL re-rupture. Methods: In this retrospective single-centre study, all patients undergoing knee imaging during the study period were screened and categorized into three groups based on clinical and imaging findings: ACL-intact, primary ACL rupture and ACL re-rupture. PTS was measured on standardized lateral radiographs using five techniques. Normal values were defined as the 95% reference interval (2.5th-97.5th percentiles). Abnormal PTS was defined using both a quantile-based approach and a standard deviation-based approach. Statistical significance was set at Results: A total of 609 subjects were included (mean age 30 ± 5 years; 304 males and 305 females), comprising an ACL-intact reference group ( Conclusion: PTS interpretation is highly method-dependent. Normal ranges and abnormal classification vary according to measurement technique, statistical definition and reference population. A universal PTS cut-off is therefore inappropriate. Level of Evidence: Level III, retrospective comparative cohort study.
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