One may encounter difficulty in attempting to advance the proximal digital flexor tendon into the pulley system. The use of (1) a purse-string suture around the tendon end, and (2) simultaneous prolonged tension on both the purse-string and repair sutures may be helpful. Tension on the purse-string suture converts the shape of the tendon end from an accordion into a bullet, easing its entry into the pulley tunnel.