Meniscal Bone Angle Is a Strong Predictor of Anterior Cruciate Ligament Injury

Alves, Luís Filipe Teixeira Gonçalves; Alves, Tiago Daniel Pinto; Barros, António S.; Ferreira, Fábio Alexandre Lopes; Gutierres, Manuel

doi:10.1016/j.asmr.2022.08.008

Cited by 2 publications

(2 citation statements)

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“…Another parameter of interest is the meniscal bone angle (MBA), which is the angle between the superior lateral meniscal surface and the subcondral bone of the tibial plateau [39]. On a previous study, it was demonstrated that patients with ACL injury have a decreased MBA, in comparison to healthy controls [43]. There have been described cutoff values of these parameters to predict ACL tear, with values of 3.5°, 22.4° and 0.2 for LPTS, MBA and LPTS/MBA ratio, respectively [43].…”

Section: Introductionmentioning

confidence: 99%

“…On a previous study, it was demonstrated that patients with ACL injury have a decreased MBA, in comparison to healthy controls [43]. There have been described cutoff values of these parameters to predict ACL tear, with values of 3.5°, 22.4° and 0.2 for LPTS, MBA and LPTS/MBA ratio, respectively [43]. Edwards et al [15] found in a paediatric population‐based study that these measurements have excellent interobserver and intraobserver reliability, with intraclass correlation coefficients (ICCs) of 0.82 for the LPTS and 0.93 for the MBA measurements.…”

Section: Introductionmentioning

confidence: 99%

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The presence of a deep lateral femoral notch sign in ACL‐injured patients is associated with a 2.7° steeper posterior tibial slope and a 19% higher frequency of lateral meniscal injuries

Braz,

Alves,

Ferreira

et al. 2024

Knee surg. sports traumatol. arthrosc.

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PurposeThe purpose of this study was to study the relationship between the presence of a deep lateral femoral notch sign (DLFNS) in anterior cruciate ligament (ACL)‐injured patients and a higher posterior lateral tibial slope (LPTS), a reduced meniscal bone angle (MBA), a higher LPTS/MBA ratio and a higher incidence of concomitant injuries in primary ACL tears.MethodsA retrospective case‐control study was performed in patients submitted to primary ACL reconstruction with an available preoperative magnetic resonance imaging (MRI) scan. Patients with ACL tears and a femoral impactation with a depth ≥2 mm were assorted to the DLFNS group and patients with ACL tear and without a DLFNS to the control group. LPTS and MBA were measured in MRI. The presence of concomitant injuries (meniscal, posterior cruciate ligament, medial collateral ligament, lateral collateral ligament and bone injuries) was assessed in MRI. Quantitative data are presented in the median ± interquartile range (IQR).ResultsThere were 206 patients included in the study, with 46 patients assorted to the DLFNS group and 160 patients to the control group. In the DLFNS group, the median LPTS was 6.7° (IQR: 4.0–8.2) versus 4.0° in the control group (IQR: 2.2–6.5) (p = 0.003). The LPTS/MBA ratio was significantly higher in the DLFNS group, with a median of 0.32 (IQR: 0.19–0.44), in comparison to the control group, with a median of 0.19 (IQR: 0.11–0.31) (p < 0.001). The multivariable logistic regression analysis showed that the LPTS is an independent risk factor to having a DLFNS (odds ratio [OR] = 1.161; 95% confidence interval [CI]: 1.042–1.293, p = 0.007). There was a higher incidence of concomitant lateral meniscal injuries in the DLFNS group (67% vs. 48%, p = 0.017).ConclusionsIn patients with ACL tears, the presence of a DLFNS is associated with a steeper lateral posterior tibial slope, as well as a higher incidence of concomitant lateral meniscal injuries.Level of EvidenceLevel III.

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Section: Introductionmentioning

confidence: 99%