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Forbidden positions: 2, 3, 9, 10, 12.
Safe positions: 1, 4, 5, 6, 7, 8, 11.
Reference positions: 4, 7, 8.
COMMENTS:
Only console transosseous elements can be used in the projection of positions 4, 6 and 8.
The application of position 4, 7 and 8 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 glenohumeral and (in lesser degree) in the elbow joints.
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