Figure 4 A–C.

The ST muscle rectraction compared between ACLR patients with one who had posterior thigh pain (preoperative coronal MR image, A) and asymptomatic random controls (B, C). The lines mark the end of semitendinosus muscles (*). The white arrows (B, C) demonstrate regenerated ST neotendons. Notably, the rectration of the muscle belly seems apparent in both groups compared to the unoperated side: 107mm (A), 47mm (B) and 62mm (C).