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Forbidden positions: 1, 2, 11, 12.
Safe positions: 3, 4, 5, 6, 7, 8, 9, 10.
Reference positions: 3, 4, 8, 9.
COMMENTS:
Positions 5, 6 and 7 are conditionaly safe because contact of transosseous elements with olecranon will lead to limitation of the movements in elbow joint.
Only console transosseous elements can be used in the projection of position 8.
The application of positions 3, 4, 8 and 9 is optimal at this level, because in this case the transosseous elements will minimally stand in the way of soft tissue displacement relative to the humerus while motions in the elbow joint.
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