Figure 1
From: Significance of the broad non-bony attachments of the anterior cruciate ligament on the tibial side
The attachment of the tibial side of ACL. (A) The superior aspect of the tibial side of the ACL. A few ACL fibers are connected to the anterior horn of LM (arrowheads). (B) After removing the ACL, while marking the margin of its attachment with a black pen. The lateral and posteromedial borders of the ACL attachment coincide with the edge of the anterior and posterior horns of LM, respectively. (C) After removing the menisci and articular cartilage. The marking line on the medial border of the ACL attachment disappeared (arrows), implying that the ACL is medially attached to the articular cartilage. (D) Summary of the attachments of the tibial side of ACL, comprising an attachment to the bone, articular cartilage, and LM. AC, articular cartilage; ACL, anterior cruciate ligament; Lit, lateral intercondylar tubercle; LM, lateral meniscus; Mit, medial intercondylar tubercle; MM, medial meniscus; PCL, posterior cruciate ligament.
