Neurobionplus
Home About Journal AHEAD OF PRINT Current Issue Back Issues Instructions Submission Search Subscribe Blog    
Login 

Users Online: 1159 
Print this page  Email this page Small font sizeDefault font sizeIncrease font size 
ORIGINAL ARTICLE
Year : 2012  |  Volume : 46  |  Issue : 5  |  Page : 514-519

Impact of Partial and complete rupture of anterior cruciate ligament on medial meniscus: A cadavaric study


1 Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
2 Department of Orthopaedics, Institute of Central South University, Xiangya Road, Changsha, Hunan, China
3 Second Department of Orthopaedics, Eighth Hospital of Changsha City, Hunan, China

Correspondence Address:
Guang-hua Lei
Department of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan 410008
China
Login to access the Email id

Source of Support: The study was supported by the grants from the National Natural Science Foundation of China (No. 30300396), the Provincial Science Foundation of Hunan (No. 09JJ3048), the Provincial Development and Reform Commission Project of Hunan (2007-896), the Graduate Degree Thesis Innovation Foundation of Hunan Province (CX2011B062), and National Clinical Key Department Construction Projects of China, Conflict of Interest: None


DOI: 10.4103/0019-5413.101040

Rights and Permissions

Background: The clinical relationship between medial meniscus tear and anterior cruciate ligament (ACL) rupture has been well documented. However, the mechanism of this clinical phenomenon is not exactly explained. Our aim is to investigate the biomechanical impact of partial and complete ACL rupture on different parts of medial meniscus. Materials and Methods: Twelve fresh human cadaveric knee specimens were divided into four groups: ACL intact (ACL-I), anteromedial bundle transection (AMB-T), posterolateral bundle transection (PLB-T), and ACL complete transection (ACL-T) group. Strain on the anterior horn, body part, and posterior horn of medial meniscus were measured under 200 N axial compressive tibial load at 0°, 30°, 60°, and 90° of knee flexion, respectively. Results: Compared with the control group (ACL-I), the ACL-T group had a higher strain on whole medial meniscus at 0°, 60°, and 90° of flexion. But at 30°, it had a higher strain on posterior horn of meniscus only. As to PLB-T group, strain on whole meniscus increased at full extension, while strain increased on posterior horn at 30° and on body of meniscus at 60°. However, AMB-T only brought about higher strain at 60° of flexion on body and posterior horn of meniscus. Conclusions: Similar to complete rupture, partial rupture of ACL can also trigger strain concentration on medial meniscus, especially posterior horn, which may be a more critical reason for meniscus injury associated with chronic ACL deficiency.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed2758    
    Printed96    
    Emailed2    
    PDF Downloaded190    
    Comments [Add]    
    Cited by others 5    

Recommend this journal