Trauma

Question 1

glasgow coma scale

Answer 1

eye (4 total think 2 per eye)

verbal (5)

motor (6)

” 4 eyes, Jackson 5, V6 - motor

Question 2

principles of load bearing

Answer 2

• hardware of sufficient strength that is able to bear the entire load
• plates and screws to immobilize the fractured segments
• use of thicker, rigid plates with bi-cortical screws to immobilize the fracture segments or lag screws
• Requires with at least 3 on each side of the fracture

Question 3

load sharing

Answer 3

• form of hardware that is unable to bear the entire functional load across fracture
• ORIF without relying solely on the plates and screws to immobilize the fracture
• uses miniplates and monocortical screws along the lines of osteosynthesis as described by champy

Question 4

line of osteosynthesis

Answer 4

first described by champy in 1976 - a line around mandible where plating the tension and compression forces are balanced and thus offering best bio- mechanical advantage for positioning of plates and screws.

Question 4

plate systems are named by?

Answer 4

the outer diameter of the screws

Question 5

thread shape difference of self drilling vs self tapping

Answer 5

self drilling: insertion without pre drilling or tapping

self tapping: requires pre drilling of a pilot hole, the insertion of the screw will create its own thread into bone.

Question 6

write out the steps of a maxillary vestibular approach