Orthofix

- Metacarpal Pin Insertion:
        - 2.7 mm drill is used for both cortices for 3.3 mm thread and
              4 mm shank are used for most applications;
        - tapered screws should not be backed out, since they will loosen;
        - cortical screw: either: 4.5/3.5 thread diameter and 60/20, 70/20, or
              80/30 mm overal thread lengths, or cortical screws w/ a 3.5/3.3
              mm thread diameter;
        - each screw needs to engage the second cortex, w/ two or three screw
              threads protruding beyond the second cortex;
        - cancellous screws are used in epiphyseal region and cortical screws are used
              for diaphyseal bone;
        - thread length must be such that about 5 mm of thread will remain
              outside the entry cortex and about 2 mm beyond the far cortex;
        - fixator to be positioned so that it clears the skin by at least 1 cm;