Figure 2.

Reconstruction procedure restores 58% of anterior–posterior stability of knee joint. At 4 weeks postsurgery, the limb was harvested and the tibia was pinned to a foam block using needles and taped to the shelf of a digital X-ray cabinet (A). A needle was passed through the femur (A1) and then suture was tied to this needle on one end and to a 10-g weight on the other end (A2). The weight was applied in the anterior (light blue arrow in A1) and posterior (white arrow in A1) directions relative to the tibia, acquiring a radiograph at each position. The two images were overlaid (B) and the displacement of the femur from anterior to posterior images was measured and normalized to the width of the tibial plateau (denoted as 100% in B). Measurements are reported in (C). Bars indicate P < 0.017. Intact knee (n = 9), ACLT,ACL-deficient knee (n = 9), or ACLR, ACL reconstructed knee (n = 8).