Correlation of Magnetic Resonance Imaging Findings with the Chronicity of an Anterior Cruciate Ligament Tear

2010 ◽  
Vol 92 (2) ◽  
pp. 353-360 ◽  
Author(s):  
Jong Pil Yoon ◽  
Chong Bum Chang ◽  
Jae Ho Yoo ◽  
Sung Ju Kim ◽  
Ja Young Choi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Anterior Cruciate Ligament ◽  
Magnetic Resonance ◽  
Cruciate Ligament ◽  
Anterior Cruciate Ligament Tear ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Ligament Tear ◽  
Anterior Cruciate

scholarly journals Predictive Accuracy of Blumensaat Line Angle and Its Apex along with Anterior Cruciate Ligament Inclination Angle for Diagnosis of Anterior Cruciate Ligament Tear with Abundant Remnant

2021 ◽  
Vol 18 (4) ◽  
pp. 604-609
Author(s):  
Vijayendra Adhikari ◽  
Amit Joshi ◽  
Nagmani Singh ◽  
Ishor Pradhan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Anterior Cruciate Ligament ◽  
Magnetic Resonance ◽  
Inclination Angle ◽  
Cruciate Ligament ◽  
Anterior Cruciate Ligament Tear ◽  
Resonance Imaging ◽  
Ligament Tear ◽  
Line Angle ◽  
Anterior Cruciate

Background: Anterior Cruciate Ligament Blumensaat line angle and Anterior Cruciate Ligament Inclination angle can be measured when Anterior Cruciate Ligament is visualized on Magnetic Resonance Imaging. Both these angles can be helpful to determine the intactness of Anterior Cruciate Ligament. The aim of this study was to evaluate the diagnostic accuracy of Anterior Cruciate Ligament - Blumensaat line angle, apex of Anterior Cruciate Ligament - Blumensaat line angle and Anterior Cruciate Ligament - Inclination angle to determine the status of Anterior Cruciate Ligament in terms of tear or no tear. Methods: We conducted a prospective observational study with Magnetic Resonance Imagings of knees of 71 patients, who were divided into Anterior Cruciate Ligament tear and Anterior Cruciate Ligament intact groups based on Anterior Cruciate Ligament - Blumensaat line angle (<150- intact; ? 150 – torn Anterior Cruciate Ligament), Anterior Cruciate Ligament - Inclination angle (>450 – intact ACL; ? 450 – Anterior Cruciate Ligament tear) and apex of Anterior Cruciate Ligament - Blumensaat line angle ( apex towards femur – Intact Anterior Cruciate Ligament; apex towards tibia or parallel lines– Anterior Cruciate Ligament Tear) measured on MRI study. Diagnostic accuracy was calculated in terms of sensitivity, specificity, positive predictive value and negative predictive value of Anterior Cruciate Ligament - Blumensaat line angle, Anterior Cruciate Ligament - Inclination angle and apex of Anterior Cruciate Ligament - Blumensaat line angle.Results: The sensitivity and specificity of Anterior Cruciate Ligament - Blumensaat line angle to detect Anterior Cruciate Ligament status was 95.83% and 95.35% respectively. Similarly, the sensitivity of Anterior Cruciate Ligament - Inclination angle was 95.83% and specificity was 95.35%. The sensitivity of Apex Anterior Cruciate Ligament - Blumensaat line angle to detect Anterior Cruciate Ligament tear on MRI was calculated to be 95.74% and a specificity of 87.5% Conclusions: Anterior Cruciate Ligament - Blumensaat line angle and Anterior Cruciate Ligament - Inclination angle is highly sensitive and specific for the diagnosis of Anterior Cruciate Ligament tear. Apex of Anterior Cruciate Ligament - Blumensaat line angle is also helpful in determination of Anterior Cruciate Ligament tear. Keywords: Anterior cruciate ligament; magnetic resonance imaging; ACL blumensaat line angle; ACL inclination angle

Mucoid degeneration of the anterior cruciate ligament: magnetic resonance imaging findings of an underdiagnosed entity

2008 ◽  
Vol 49 (1) ◽  
pp. 75-79 ◽  
Author(s):  
J. L. Fernandes ◽  
S. L. Viana ◽  
J. L. F. Mendonça ◽  
F. M. O. Freitas ◽  
A. S. A. Bezerra ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Anterior Cruciate Ligament ◽  
Magnetic Resonance ◽  
Cruciate Ligament ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Mucoid Degeneration ◽  
Anterior Cruciate
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