Olecranon Fractures

Question 1

What is the classification for olecranon fractures?

Answer 1

Mayo:
Type I: non-displaced (stable)
Type II: displaced (stable)
Type III: displaced, elbow dislocation (unstable)
Each has A (simple) or B (comminuted) subcategory

Question 2

What is the mechanism for an olecranon fracture?

Answer 2

Transverse or oblique: due to eccentric contraction with fall on UE
Comminuted: due to direct blow

Question 3

What are the indications for plate fixation of an olecranon fracture?

Answer 3

1) comminuted fractures
2) Monteggia fractures
3) fracture-dislocations
4) oblique fractures that extend distal to coronoid

Question 4

What is the rate of hardware removal in plate and tension band fixation of olecranon fx?

Answer 4

Plate: ~20%

Tension band: ~40-80%

Question 5

What are complications of overpenetration of tension band wires through anterior cortex in olceranon fx fixation?

Answer 5

1) AIN palsy

2) Decrease forearm rotation

Question 6

How often do patients with olecranon fractures have stiffness?

Answer 6

~50%

Question 7

What are the indications for excision and triceps advancement in an olecranon fx?

Answer 7

1) Elderly w/ osteoporotic bone

2) fracture that involves