previous section: 5/7 page: 4/6 next

5Drilling

Use a depth gauge to determine the correct screw length.

Screw length
Use a depth gauge to determine the correct screw length.

Pitfalls
Ensure that a screw of the correct length is used.
Too short screws do not have enough threads to engage the cortex properly. This problem increases when self-tapping screws are used due to the geometry of their tip.
Too long screws endanger the soft tissues, especially tendons and neurovascular structures. With self-tapping screws, the cutting flutes are especially dangerous, and great care has to be taken that the flutes do not protrude beyond the cortical surface.