Biomechanical Testing of Anterior Cruciate Ligament Grafts Reconstructed with the Lars Artificial Ligament Internal Support Technique
Abstract：Objective To investigate the biomechanical properties of anterior cruciate ligament grafts reconstructed using the Lars artificial ligament internal support technique. Methods Twenty-four fresh adult pig tendons were selected and randomly divided into three groups according to a random number table: Group A (simple tendon graft without any reinforcement), Group B (tendon mixed with artificial ligament with an additional 1 mm diameter reinforcement, total diameter 8 mm), and Group C (tendon mixed with artificial ligament with an additional 2 mm diameter reinforcement, total diameter 8 mm). Each group had 8 tendons. The three types of grafts were subjected to load testing, and the load at 5 mm elongation and the failure load (the load when the graft was broken) were recorded. Results There were statistically significant differences in the load at 5 mm elongation among Groups A, B, and C (P < 0.05), with the order being A < B < C (P < 0.05). There were also statistically significant differences in the failure loads among the three groups (P < 0.05). Both Groups B and C had higher failure loads than Group A (P < 0.05), while there was no statistically significant difference between Groups B and C (P > 0.05). Conclusion The hybrid graft composed of biological grafts and the Lars artificial ligament has higher initial strength.
Keywords：anterior cruciate ligament reconstructiongraftartificial ligamentinternal support technology
Publication Date：2025-11-25
Online Publishing Date：2025-12-25(First online date of this platform, not the publication date of the document)
Pages：4( 443-446 )