Fig. 3

Transverse (a), sagittal (b), and coronal (c & d) views of a harvested patellar tendon. The cross-hair is placed in the center of the harvested region (3A) at the distal pole of the patella (3B). Horizontal line ensures that patella and tibia tuberosity are at the same level (3B). The vertical lines in (3C) and (3D) allow confirmation that patella apex and tibia tuberosity are aligned. Horizontal and vertical alignment are requirements for a scan to be considered of a satisfactory quality to be saved and included for analysis