Background:Characterization of mechanical behavior of meniscus is very important issue due to significant role of meniscus in load bearing within the knee joint and identifying mechanical change in meniscal tissue is of particular interest with respect to osteoarthritis (OA) research. Acl tear can also have deep impression on the meniscus clinically. Meniscus injury is common in pations with tear Acl.  

Objectives: The purpose of this study is to survey Longitudinal tear meniscus for analysis and a finite element analysis model to achieve tension on the knee with Acl stability  during meniscus tear and unstability of this Acl used on determine the procedure distribution compared  the processing  the output  of different models.

Methods & Materials: 3-dimensional finite element model of knee joint biomechanics with the help of CT scan images were made. Healthy hip bone structure were designed with mimics software. The obtained model to Abaqus software is compiled for analysis.

Result: The maximum shear stress on page medial meniscus 1.73 Mpa and lateral meniscus on the page is 1.48Mpa. As a result, the amount of tension in the meniscus is more internal than external meniscus. The medial meniscus will be damaged more. In cruciate ligament tear sustained maximum shear stress 8.33Mpa  on page medial meniscus and cruciate ligament tears with instability maximum shear stress is on page medial meniscus 9.65Mpa.

Conclusion: The result confirmed that biomechanical response of  meniscus tear and Acl tear an important role in the stability of the meniscus. A meniscus and  ligament tears in the meniscus increased levels of stress and stress distribution diagram.