Fractures Flashcards
1
Q
Define fracture
A
- defect in continuity of bone
2
Q
Define traumatic fractures
A
- sudden, forceful impact
- MVA, fall, assault, or abuse
3
Q
Define pathologic/insufficiency fractures
A
- osteoporosis
- nutrient deficiency, age, sex, smoking, proton pump inhibitors, or corticosteroids
4
Q
Define stress fractures
A
- change in training frequency, intensity, or volume
- overtraining, inadequate recovery
- LE mechanics
5
Q
Describe an avulsion fracture
A
- occurs from tensile load usually from a tendon
- when under high tension the bone is what is broken and pulled away
6
Q
Salter Harris classification of epiphyseal fractures
A
- Type I: straight through the growth plate
- Type II: begins in the growth plate then goes through the diaphysis
- Type III: begins in the epiphysis and goes through the growth plate
- Type IV: goes through all layers
- Type V: compression of the growth plate (impaction fracture)
- Type VI: compression of one side of growth plate
- Type VII: only goes through the epiphysis
- Type VIII: only goes through the diaphysis & metaphysis
- Type IX: tendon coming off of the side
7
Q
Describe a closed reduction of fractures
A
- placing the bone back into place with the used of soft tissue hinge without surgery
8
Q
Describe an open reduction of fractures
A
- placing the bone back into place through surgery
9
Q
Describe a Galeazzi fracture
A
- distal radius
- dislocation of distal radioulnar joint
10
Q
Describe a Jones fracture
A
- base of 5th metatarsal
11
Q
Describe a Maisonneuve fracture
A
- fibula
- a few inches above mortise
12
Q
Describe a Monteggia fracture
A
- proximal ulna
- dislocation of radial head
13
Q
Describe a Nightstick fracture
A
- midshaft ulna
14
Q
Describe a Piedmont fracture
A
- radial shaft
15
Q
Describe a Pott’s fracture
A
- oblique lateral malleolus
- transverse medial malleolus
16
Q
Describe a Torus/Buckle fracture
A
- cortical bone compression type defect without displacement
17
Q
Describe primary/direct cortical bone healing
A
- continuity is restored by direct contact & healing of the original cortical tissue
- requires near perfect reduction, very stable immobilization
18
Q
Describe secondary/indirect cortical bone healing
A
- follows more classic healing response (inflammation, repair, remodeling)
- facilitated by some motion & some weight bearing
19
Q
Describe cancellous bone healing
A
- direct, membranous bone formation
- occurs quickly but can only cover a few millimeters
- probably mediated by local stem cells
20
Q
Factors that affect bone healing
A
- age
- degree of local trauma
- degree of bone loss
- type of bone involved
- degree of immobilization
- infection
- local malignancy
- radiation necrosis
- avascular necrosis
- hormones
- exercise/modified tension along the line of stress