Orthopaedic Trauma Flashcards
1
Q
Fractures:
A
Disruptions in the continuity of bone
2
Q
Open fractures require (2):
A
- Urgent tetanus and antibiotics
- Semi-urgent surgical debridement
3
Q
Beset test to order for fx:
A
X-ray
4
Q
Most sensitive test for fx:
A
MRI
5
Q
Fx treatment (4):
A
- Recognition
- Reduce
- Retain
- Rehab
6
Q
Nonunion (2):
A
- Bone does not heal
- Lack of radiographic evidence of progression of callus formation of a 3-5 month period
7
Q
Malunion:
A
Bone heals in unacceptable alignment
8
Q
Primary fx healing (2):
A
- Direct healing with no callous
- Rigid fixation from plates
9
Q
Secondary fx healing (2):
A
- Indirect formation of bone from uncommitted mesenchymal cells
- Controlled motion (rods, casts)
10
Q
Three stages of secondary fx healing:
A
- Inflammatory for 48 hours
- Reparative for 8 weeks
- Remodeling for 1 year
11
Q
Osteogenic bone healing (2):
A
- Bone forming
- Only autologous bone graft
12
Q
Osteoinductive (3):
A
- Bone stimulation
- Encourages differentiation of mesenchymal cells in to osteoblasts
- BMP-2 and BMP-7
13
Q
Osteoconductive (2):
A
- Bone scaffold
- Cancellous allograft
14
Q
Casting pro’s (3):
A
- Undisturbed fracture milleu
- No incisions
- Heals by endochondral ossification
15
Q
Casting con’s (2):
A
- No anatomic reduction
- Stiffness
