@article{article_190369, title={Secondary MRI findings in patients with acute and chronic anterior cruciate ligament ruptures}, journal={Acta Orthopaedica et Traumatologica Turcica}, volume={34}, pages={28–33}, year={2006}, DOI={10.3944/aott.v34i1.1765}, author={Ozkan, Ilhan and Cullu, Emre and Savk, Oner and Aydogdu, Semih and Alparslan, Bulent}, keywords={Anterior cruciate ligament/pathology/injuries/diagnosis;Anterior cruciate ligament/pathology/injuries/differential;knee injuries/diagnosis;magnetic resonance imaging;menisci, tibial/injuries;tibia/pathology}, abstract={Objectives: To evaluate the diagnostic value and incidence of secondary magnetic resonance imaging (MRI) findings in patients with anterior cruciate ligament (ACL) rupture.
Methods: Magnetic resonance imaging (MRI) findings obtained before arthroscopic surgery were retrospectively evaluated in 46 patients (33 males, 13 females; mean age 29.2 years) with ACL ruptures. A control group of 46 patients (28 males, 18 females; mean age 31.4 years) were also included, who underwent arthroscopy due to meniscus lesions and were not found to have any ACL ruptures. In all cases, secondary MRI findings of ACL rupture were assessed, including bone bruises, the value of the posterior cruciate ligament (PCL) curvature, anterior translation of the tibia, and uncovered lateral meniscus signs. Statistical analyses were made using Student’s t-test and the chi-square test.
Results: Bone bruises were observed in 13 patients (28.3%) in the study group compared to only one patient (2.2%) in the control group (p=0.000). Mean curvatures of the PCL were 0.49±0.12 and 0.26±0.04 in the study and control groups, respectively (p=0.000). The average anterior translation of the tibia was 6.1±1.4 mm in patients with ACL rupture and 0.9±1.4 mm in the control group (p=0.000). Uncovered lateral meniscus sign was observed in 26 patients (56.5%) in the study group and in none of the patients in the control group (p=0.000).
Conclusion: The evaluation of secondary findings on MRI examination may enable to draw a correct diagnosis in patients with ACL ruptures, in whom primary MRI findings may be inadequate, particularly in chronic cases.}, number={1}, publisher={Turkish Association of Orthopaedics and Traumatology}