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In addition, the bone engagement surface 1126 of the tendon trajectory guide 1120 is defined to match and correspond to the surface contour and/or any landmarks on a surface of the bone, such as the navicular 218. This means that once the plantar surface of the navicular 218 is exposed a surgeon can seat the tendon trajectory guide 1120 in the same location and position and orientation as used preoperatively. Advantageously, the bone engagement surface 1126 matches to the surface of the navicular 218 and/or any landmarks of the navicular 218 such that the surgeon can position the bone engagement surface 1126 on the inferior target marker 1108 accurately each time and in each procedure. Once the bone engagement surface 1126 is registered to the plantar surface of the navicular 218 the surgeon is assured that deployment of a hole, opening, bone tunnel, or fastener 910 through the trajectory port will match the location / trajectory determine preoperatively. Thus, many of the challenges of determining the inferior target marker 1108 are overcome using the tendon trajectory guide 1120.

Added by DJM Jan 2024