Forearm
Middle

Ulna
Level VII

    14pt 18pt 22pt
Forearm Middle Ulna Level 1
Forearm Middle Ulna Level 2
Forearm Middle Ulna Level 3
Forearm Middle Ulna Level 4
Forearm Middle Ulna Level 5
Forearm Middle Ulna Level 6
Forearm Middle Ulna Level 7
Forearm Middle Ulna Level 8

Forbidden positions: 1, 2, 3.

Safe positions: 4, 5, 6, 7, 8, 9, 10, 11, 12.

Reference positions: 4, 5, 6, 7, 8, 11, 12.

Reference positions with safe rotation: 6.

COMMENTS:

Only console transosseous elements can be used in the projection of positions 7, 8 and 9.
The application of position 6 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 ulna while motions in the elbow and in the radioulnar joints, forearm rotation.
Insertion of transosseous elements in the projection of positions 4, 5, 7, 8, 11 and 12 will provide free flexion and extension in the radiocarpal joint, but will limit forearm rotation.
 

   

 

The transosseous elements recommended for use at the ulnar level VII can be designated as: VII,4; VII,5; VII,5-11; VII,6; VII,6-12(VII,6-12); VII,6(VII,6); VII,7; VII,8; VII,11 and (VII,12)VII,12.