User's Manual Part 1

page

section 06

40040005 rev. 000

1. POSITIONING THE PATIENT FOR A 45 DEGREE ISOMETRIC FLEXION/EXTENSION TEST

Step 8. For a flexion test, insert the front head brace. For an extension test, insert the

back head brace. Note that the bottom of the back brace is located at the external oc-

cipital protuberance (Figure 6-67).

Step 9. Set the halo to 15 degrees below the horizontal (Figure 6-68).

Step 10. Position the head brace against the patient’s head.

Step 11. Make fine adjustments to the seat to line up C5/C6 of the patient’s spine with

the pivot point of the halo (Figure 6-69).

Step 12. While holding onto the side of the halo, unlock the rotation pin, which is lo-

cated at the top middle of the halo. If you’re testing the patient’s left side, rotate the

halo to 45 degrees right rotation and then lock the rotation pin. Rotate the halo to 45

degrees left rotation to test the patient’s right side (Figure 6-70).

Figure 6-69. Final Adjustments and Locating C5/C6

Figure 6-68. Halo Angle

Location of

Back Brace

Figure 6-67. Initial Isometric Flexion

& Extension Set-up

Flexion Set-up

Unlock Rotation Pin

Figure 6-70. Halo Rotation of 45

Right