LAG TECHNIQUE

Question 1

how is the 2.5 mm hole drilled?

Answer 1

both proximal and distal cortices (near and far cortices)

Question 2

what allows the screw to sit flush with bone? what does this reduce?

Answer 2

countersink

reduces chance of stress riser

Question 3

what is used over drill or glide hole?

where do we drill only?

Answer 3

3.5 mm

proximal or near cortex, over drill only for fully threaded screws when you want to create lag

Question 4

length of screw is measured with?

Answer 4

depth gauge

Question 5

this used to place threads in the bone? than what is inserted?

this is the same size as the4 screw?

Answer 5

3.5 mm tap, 3.5 mm cortical screw

tap