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Fixation

At least two screws should be inserted to fix the fracture.

We illustrate the use of 3.5 mm cannulated screws. A larger diameter screw may be preferred for larger bone fragments, particularly in the surgical neck region. Since interfragmentary compression is desired, use a lag screw technique, with partially threaded screws inserted so screw threads do not cross the fracture line.

Guide wire insertion
At least two screws should be inserted to fix the fracture. Therefore, insert guide wires at the foreseen cannulated screw positions. Make stab incisions and use blunt dissections to spread the muscles. Check the position of the guide wires by image intensification.

Note: axillary nerve
Beware the axillary nerve and the bicipital tendon.