Fig. 4

Tendons in suture group. A. The tendon shown above is suture group’s tendon of porcine. Suture was performed on the lateral side of the clamp line. There are five sutures perpendicular to the longitudinal axis of the tendon on the left and right sides of each end of the tendon to increase the friction. The processing method of suture group’s tendon of chicken was same as the porcine’s. B. The diagram of stitching method is in the red box of A. The red line is clamp line and the black curve is the suture. The solid line represents that the suture is visible on the front of the tendon, and the dotted line represents that the suture is on the back of the tendon or through the inside of the tendon. The red dot marks the needle position