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    Morphometric risk factors effects on anterior cruciate ligament injury
    (Turkish Joint Diseases Foundation, 2023) Gültekin Muhammet Zeki; Dinçel, Yaşar Mahsut; Keskin, Zeynep; Arslan, Serdar; Yıldırım, Ahmet
    Objectives: This study aims to compare the morphometric differences between patients with and without an anterior cruciate ligament (ACL) injury and to investigate the anatomical risk factors associated with ACL injury. Patients and methods: Between February 2020 and February 2022, a total of 100 patients (57 males, 43 females; mean age: 36.2 +/- 6.8 years; range, 18 to 45 years) who were operated for isolated non-contact ACL tear as the patient group and a total of 100 healthy individuals (58 males, 42 females; mean age: 35.0 +/- 6.9 years; range, 18 to 45 years) without an ACL tear as the control group were included. Magnetic resonance imaging scans of the knee joint were included in the study. Morphological variables of the ACL, distal femur, proximal tibia, and menisci were measured. Results: The mean ACL inclination angle and medial meniscus bone angle were 37.7 +/- 3.8 and 20.2 +/- 2.9 in the patient group and 48.1 +/- 3.3 and 25.0 +/- 2.9 in the control group. According to the results of multivariate analysis, those with small ACL inclination angle and medial meniscus bone angle were more likely to have ACL tear (odds ratio: 0.128, intraclass correlation coefficient: 0.038-0.430, p= 0.001). Conclusion: Small ACL inclination angle and medial meniscus bone angle can be a risk factor for ACL tear.
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    Three Morphological Risk Factors for Predicting Isolated Meniscal Bucket-handle Tear
    (Springer Heidelberg, 2024) Gultekin, Muhammet Zeki; Keskin, Zeynep; Arslan, Serdar; Dinc, Engin; Dincel, Yasar Mahsut
    Purpose The study aimed to investigate whether morphometric variables of the knee can predict isolated meniscal bucket-handle tears and identify the risk factors. Methods The study included 146 participants with a mean age of 36.547 +/- 12.279 years. They included two groups of 73 patients each: one group with isolated meniscal bucket-handle tears and another with no knee injury (control group). Magnetic resonance imaging findings of the participants were retrospectively assessed. A few morphometric variables associated with distal femur, proximal tibia, and cruciate ligaments were measured. Results Cruciate ligament tensity (CLT), medial femoral condylar height (MFCH), and lateral meniscal bone angle (LMBA) were found to be 12.7 +/- 0.3, 30.1 +/- 2.5 mm, and 21.2 degrees +/- 3.4 degrees, respectively, in patients with meniscal bucket-handle tear, compared with 11.9 +/- 0.2, 28.3 +/- 2.7 mm, and 26.5 degrees +/- 3.7 degrees in the control group, respectively. Based on multivariate Firth's logistic regression analysis, CLT (Odds ratio [OR]: 456.533; 95% confidence interval [CI]: 27.582 to > 999.999), MFCH (OR: 1.603; 95% CI: 1.023-2.513), and LMBA (OR: 0.780; 95% CI: 0.624-0.975) could distinguish between meniscal bucket-handle tears and knees without meniscus tears (p < 0.05). Based on the multicategorical multinominal regression model, CLT (OR: > 999.999; 95% CI: 49.937 to > 999.999) and MFCH (OR: 1.903; 95% CI: 1.005-3.606) were the determinant variables in differentiating medial meniscal bucket-handle tears from knees without meniscus tears (p < 0.05). Conclusion Large CLT, high medial condyle, and small LMBA were revealed as the morphometric risk factors for meniscal bucket-handle tear.