Knee laxity in anterolateral complex injuries versus lateral meniscus posterior horn injuries in anterior cruciate ligament deficient knees: A cadaveric study

The Knee ◽  
2020 ◽  
Vol 27 (2) ◽  
pp. 363-374
Author(s):  
Ji Hyun Ahn ◽  
In Jun Koh ◽  
Michelle H. McGarry ◽  
Nilay A. Patel ◽  
Charles C. Lin ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Cruciate Ligament ◽  
Lateral Meniscus ◽  
Knee Laxity ◽  
Posterior Horn ◽  
Cadaveric Study ◽  
Anterolateral Complex ◽  
Anterior Cruciate ◽  
Anterior Cruciate Ligament Deficient ◽  
Complex Injuries

Role of the anterolateral complex in rotatory instability of the anterior cruciate ligament deficient knee

2017 ◽  
Vol 2 ◽  
pp. 35-35
Author(s):  
Gian Andrea Lucidi ◽  
Jonathan D. Hughes ◽  
Elmar Herbst ◽  
Jeremy M. Burnham ◽  
Volker Musahl
Keyword(s):  
Anterior Cruciate Ligament ◽  
Cruciate Ligament ◽  
Rotatory Instability ◽  
Anterolateral Complex ◽  
Anterior Cruciate ◽  
Deficient Knee ◽  
Anterior Cruciate Ligament Deficient

Partial and complete tear of the anterior cruciate ligament: Direct and indirect MR signs

2002 ◽  
Vol 43 (5) ◽  
pp. 511-516 ◽  
Author(s):  
W.-T. Chen ◽  
T. T.-F. Shih ◽  
H.-Y. Tu ◽  
R.-C. Chen ◽  
W.-Y. Shau
Keyword(s):  
Anterior Cruciate Ligament ◽  
Pulse Sequence ◽  
Cruciate Ligament ◽  
Lateral Meniscus ◽  
Lateral Compartment ◽  
Posterior Horn ◽  
Acl Tear ◽  
Complete Tear ◽  
Bone Contusion ◽  
Anterior Cruciate

Purpose: To analyze MR direct and indirect signs for knees with anterior cruciate ligament (ACL) partial or complete tear. Material and Methods: According to documented MR direct and indirect signs for ACL tear, we retrospectively reviewed the incidence of those signs in 15 partial ACL tear and 17 complete ACL tear patients. The findings were also compared with duration of injury (less or more than 6 weeks, as acute or chronic stages). Results: A residual straight and tight ACL fiber in at least one pulse sequence was more frequently detected in partial ACL tears. The empty notch sign, a wavy contour of ACL, bone contusion at lateral compartment and lateral meniscus posterior horn tear were significantly more frequently seen in complete tear cases. The posterior cruciate ligament angle in chronic complete ACL tear cases (109°±20°) had a tendency to be less than in chronic partial ACL tear cases (119±18°). Conclusion: The empty notch sign, a wavy ACL, bone contusion, and posterior horn of lateral meniscus tears are suggestive of a complete ACL tear. A residual straight and tight ACL fiber seen in at least one image section is a helpful sign to diagnosis of partial ACL tear. In the acute ACL injury stage, a focal increase of the ACL signal intensity is more suggestive of a partial ACL tear.

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