Stress Fracture Flashcards Preview

Clinical Med and Diagnostic > Stress Fracture > Flashcards

Flashcards in Stress Fracture Deck (22)
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1
Q

Any fracture or microfracture that occurs as the result of repetitive cyclic insults rather than by one traumatic event (load failure).

A

STRESS FRACTURES

  • Increase in osteoclastic activity and micro-fractures of trabecular bone
2
Q

Occurs in normal bone when increased stress occurs

Most common form you will see

A

Fatigue Fracture

3
Q

Occurs in abnormal bone weakened by an underlying disease or condition (arthropathy, metabolic bone disease, osteoporosis), without increase in stress needed

A

Insufficiency/Fragility Fracture

4
Q

Occurs in bone invaded by a tumor/other disease process (ie, aneurysmal bone cyst, osteomyelitis)

A

Pathologic Fracture

5
Q

________-leads to decrease in bone density

Surgery, injury

A

Prolonged NWB

6
Q

Decreased bone mineral density can be a result of ______

A

*Vitamin D deficiency

7
Q

Responsible for osteoclast-suppressing activities and preventing osteoblastic suicide

A

Estrogen/Hormone levels

  • A decline in estrogen triggers an osteoclast production explosion which increases bone turnover and the amount of remodeling
8
Q

Stress fractures often develop from overuse-repeated stress of foot striking the ground

A

Extrinsic Factors for develpoment of stress factors

-

9
Q

Extrinsic Factors

A

Change of surface
Nutritional Status/Diet
Medications
Training Regimen: Error in training or technique

10
Q

Eating disorders
Irregular menstrual cycle
Osteoporosis

A

Female Triad

11
Q

Estrogen is responsible for suppression of osteoclasts and for keeping osteoblasts alive

A

Estrogen

12
Q

2nd and 3rd ____), followed by 4th and 5th

A

28%

  • 2-4 march fractures
  • 2 and 3 most common
13
Q

Flat foot with metatarsus adductus or prominent 5th met base

A

Predisposed to 5th met fracture

14
Q

5th Metatarsal: Torg Classification

No previous fracture
Acute fracture line with sharp edges

A

Type 1

15
Q

5th Metatarsal: Torg Classification

No previous injury or fracture
Fracture line involves both cortices
Periosteal new bone and intramedullary sclerosis

A

Type 2

16
Q

5th Metatarsal: Torg Classification

A

Type 3

17
Q

Pain localized to ‘N’ Spot- Small area approximately the size of a nickel

Central 1/3rd most common area due to vascular supply

A

Navicular Stress fracture

-make non weight bearing

18
Q

Early diagnosis and treatment ….

A

is key

19
Q

Pressure to the top of the metatarsal, not the bottom, will produce pain

A

Metatarsals:

20
Q

Side to side compression/squeeze test for calcaneus

A

Calcaneus:

21
Q

____scan and____I can be utilized to help verify extent of fracture seen on bone scan, or help distinguish fracture from infection

A

CT

MRI

22
Q

__________ of inciting activity paramount
Will reverse destructive phase
If not utilized, will develop much more extensive fracture

A

Rest and cessation

Limit activity for minimum 3-4 weeks

Pain is a good guide for progression to activity