Anterior cruciate ligament injury may involve a complete or partial tear within the substance tear of the ligament or an avulsion from the bone.

Sherman Type 1 ACL injury Sherman type IV tear of ACL  
Sherman Type I ACL injury - the ACL has torn off at the bony attachment site in the roof of the notch. Sherman Type IV ACL injury - right through the mid-substance of the ligament.  
Synonyms: 
ACL injury
ACL tears
ACL avulsion
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Cruciate Ligament Library

Library of excerpts from the medical literature about Cruciate Ligaments, with links to PubMed

Early indicators of a cruciate tear

What makes you think you might have torn your cruciate?

Holly Silvers discusses how special training can reduce the incidence of ACL tears.

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CLINICAL PUBLICATIONS

Intrasubstance Anterior Cruciate Ligament Injuries in the Pediatric Population. Aylyarov A, Tretiakov M, Walker SE, Scott CB, Hesham K and Maheshwari AV. Indian J Orthop. 2018 Sep-Oct; 52(5): 513–521.

Unique simultaneous avulsion fracture of both the proximal and distal insertion sites of the anterior cruciate ligament. Samuelsson K,Svantesson E, Senorski EH and Östman B. BMJ Case Rep. 2018; 2018: bcr2017222265.


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