13 |
Headless Compression and Twist-Off Screws
Surgical Technique
Insertion
(cont.)
Once the screw head engages the dorsal cortex, the
support prongs are designed to snap off (Figure 6).
Figure 6
Twist-Off Screw Technique
If inserting the Twist-Off Screw in osteoporotic bone,
stop advancing the screw before the head engages
the near cortex. Place the mosquito clamp against
the screw, below the head, applying pressure while
bending the pin driver towards the mosquito clamp
(Figure 7), until the shaft breaks off from the screw
head.
Place the Twist-Off Finishing Driver on the Mini Rachet
Handle and finish screw placement by hand (Figure 8).
Figure 8
Figure 7
