Abstract
The purpose of this study was to evaluate biomechanical properties of anterior cruciate ligament (ACL) by the tensile and the relaxation tests. Sixteen pieces of porcine femur-ACL-tibia complex (FATC) were tested. The static tensile and stress relaxation tests were performed with an Instron-type universal testing machine. Differences in stress-strain relation were measured at the slow(100mm/min) and fast (200mm/min) deformation rates. The results are as follows. 1 ) The ACL AM ( anteromedial ) bundle exhibited significant distribution of the deformation at the two deformation rates. 2 ) Significant difference was observed between proximal and midsubstance region at the two (slow and fast) deformation rates. 3 ) Stress relaxation test result was in good agreement with quasi-linear viscoelastic theory.
