As shown in the previous explanations, the ORCA and its flipper require a hole that is 4.25mm to pass. Significantly less than most tendons will require for bicortical repair. Therefore, the size of the Unicortical hole ends up depending on the size of the tendon.

Screw-based fixation tends to only use one size
(8mm for one competitor).

This also removes bone material around the radial tuberosity, encouraging fractures.

The ORCA is a self-locking button. Once it flips into place, the ORCA locks down and prevents the suture from backing out of the 4.3mm hole. This means the arm can be extended to the surgeons’ discretion.

Other, knot-based systems require the surgeon to keep the arm in the same position until the construct is secured. This increases the difficulty of the repair.