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17.07.2024 | Scientific Article

Association of tibial slope alterations with anterior cruciate ligament (ACL) injury and mucoid degeneration

verfasst von: Varun Ravi, Mahad Rehman, Shuda Xia, Avneesh Chhabra, Flavio Duarte Silva

Erschienen in: Skeletal Radiology | Ausgabe 2/2025

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Abstract

Objective

To compare radiographic measurements of lateral tibial slope (LTS), medial TS (MTS), and coronal TS (CTS) in MRI-defined intact, injured, and mucoid-degenerated native ACL knees and determine inter-reader reliability.

Materials and methods

Patient records from 2 years at tertiary care hospitals were reviewed for individuals aged 18–100 undergoing 3-Tesla knee MRI and radiographs. Two randomly selected cohorts, control, and pathologic ACLs on MRI with 86 patients each, were age, gender, and BMI-matched. A fellowship-trained musculoskeletal radiologist reevaluated curated images, characterizing ACL status. Two trained medical students independently collected clinical data and measured slopes on blinded radiographs. ICC, Cohen’s kappa, and case–control matching were performed using SPSS statistical package, with ICC and ANOVA used for comparisons.

Results

Among 172 patients with 172 MRIs and radiographs, there were 86 controls and 86 ACL lesions. There were 108/172 (62.79%) males and 64/172 (37.21%) females. ICCs were 0.966 for MTS, 0.975 for LTS, and 0.978 for CTS. Mucoid degeneration patients had a higher BMI and were older than control (p < .05) or completely torn (p < .001) ACL patients. There was no difference in TS between normal and pathologic ACLs; however, LTS-MTS differences were larger with partial tears (2.5 ± 4.9) than normal ACLs by 4.5° (± 1.2, p < .001), complete tears by 4.5° (± 1.3, p < .001), and mucoid degeneration by 4.9° (± 1.5, p = .001).

Conclusion

Various TS measurements are reliable. LTS-MTS differences are associated with different ACL lesions compared to normal ACLs.
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Metadaten
Titel
Association of tibial slope alterations with anterior cruciate ligament (ACL) injury and mucoid degeneration
verfasst von
Varun Ravi
Mahad Rehman
Shuda Xia
Avneesh Chhabra
Flavio Duarte Silva
Publikationsdatum
17.07.2024
Verlag
Springer Berlin Heidelberg
Erschienen in
Skeletal Radiology / Ausgabe 2/2025
Print ISSN: 0364-2348
Elektronische ISSN: 1432-2161
DOI
https://doi.org/10.1007/s00256-024-04744-x

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