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Emergency Med > MSK > Flashcards

MSK Flashcards

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1
Q

What is the positioning of the arm in an ANTERIOR shoulder dislocation?

A

ABducted + Externally rotated

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2
Q

What nerve injury must you rule out in an anterior shoulder dislocation?

A

Axillary nerve

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3
Q

Define Hill-Sachs lesion

A

Groove on humeral head=compression fracture from impact against glenoid
complication of anterior shoulder dislocation

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4
Q

Define Bankart lesion

A

Glenoid inferior rim fracture

complication of anterior shoulder dislocation

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5
Q

What is the positioning of the arm in a POSTERIOR shoulder dislocation?

A

ADduction + Internally rotated

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6
Q

What is the MC type of hip dislocation?

A

Posterior hip dislocation

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7
Q

Positioning of the leg in posterior hip dislocation?

A

Shortened Leg + Internally Rotated + ADducted

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8
Q

Complication/subsequent injuries of a posterior hip dislocation?

A
  1. Avascular necrosis

2. Sciatic nerve injury

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9
Q

Positioning of the leg in hip fractures

A

Shortened Leg + ABducted + Externally Rotated

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10
Q

Slipped Capital Femoral Epiphysis clinical presentation

A

Hip, thigh, or knee pain with LIMP + External rotation in AA obese male boy going through puberty

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11
Q

what does Slipped Capital Femoral Epiphysis put you at an increased risk for?

A

Avascular necrosis

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12
Q

Slipped Capital Femoral Epiphysis treatment

A

NWTB w/ crutches–>ORIF

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13
Q

Supracondylar humeral fracture MOI

A

FOOSH with hyperextended elbow

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14
Q

What are the complications of a supracondylar humeral fracture?

A
  1. Median n. + Brachial artery injury= Volkmann ischemic contracture
  2. Radial nerve injury
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15
Q

What nerve injury must you rule out in a humeral shaft fracture?

A

Radial N. injury

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16
Q

What nerve injury must you rule out in a proximal humerus/humeral head fracture?

A

Brachial plexus injury

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17
Q

L4 sensory, weakness and reflex deficits in herniated disc

A

Sensory: Anterior thigh pain, sensory loss to medial ankle
Weakness: Ankle dorsiflexion
Reflex: loss of knee jerk

18
Q

L5 sensory, weakness and reflex deficits in herniated disc

A

Sensory: Lateral thigh/leg/hip/groin paresthesia & pain, dorsal of foot
Weakness: Big toe dorsiflexion
Reflexes: Normal

19
Q

SI sensory, weakness and reflex deficits in herniated disc

A

Sensory: Posterior leg/calf
Weakness: Plantarflexion
Reflex: Loss of ankle jerk

20
Q

Properly identify the disorder described below:

Pain is worse with prolonged standing/walking (extension)
Pain is relieved with sitting/walking uphill (flexion)

A

Spinal Stenosis

21
Q

If you suspect septic arthritis, what diagnostic study provides a definitive dx? findings?

A

Arthrocentesis: Joint fluid aspirate

-WBC >50,000 (mostly PMN’s)

22
Q

Abx treatment in Septic Arthritis

A

Gram +: Nafcillin

Gram - : Ceftriaxone

23
Q

What is the MC organism in Septic Arthritis?

A

S. aureus

24
Q

What is there an increased incidence of in a scaphoid fracture? why?

A

Avascular blood supply: Radial artery passes through here

25
Q

Scaphoid fracture management

A

Thumb Spica: nondisplaced

ORIF: displaced

26
Q

Correctly identify the fracture/injury described below:

FOOSH with wrist flexion
Ventral Angulation

A

Smith Fracture

27
Q

Correctly identify the fracture/injury described below:

FOOSH with wrist Extension
Dosal Angulation

A

Colles fracture

28
Q

What is the MC complication in Colles fracture?

A

Extensor polices longus tendon rupture

29
Q

Colles fracture treatment

A

Sugar tong splint

30
Q

What is the MC fracture of the hand?

A

Boxer’s fracture: Distal metaphysics of 5th metacarpal

31
Q

Boxers fracture treatment

A

Ulnar gutter splint

32
Q

Correctly identify the disorder described below and treatment:

Pain along the radial aspect of the wrist redacting to the forearm
Works as a clerical worker
+ Finkelstein test

A

de Quervain Tenosynovitis

33
Q

Carpal Tunnel syndrome treatment

A

Volar Splint + NSAIDs

Steroid injections

34
Q

Correctly identify the injury described below:

Hyperabduction injury of thumb
Pain & swelling ulnar aspect of thumb
MCP tenderness
Weakness with pinching

A

Gamekeeper’s thumb: Ulnar Collateral Ligament (UCL) Sprain @ 1st MCP joint

35
Q

Gamekeeper’s thumb treatment

A

Thumb Spica

36
Q

Whats the MC type of ankle dislocation?

A

Posterior

37
Q

What is the MCly injured collateral ligament in an ankle sprain? why?

A

Anterior Talofibular (ATFL)= main stabilizer during inversion

38
Q

What other x-ray should you order in everyone with a distal ankle fracture? Why?

A

Proximal view to rule out Maisonneuve fracture

39
Q

Define Maisonneuve fracture

A

Spiral proximal fibular fracture as a result of distal medial malleolar fracture and/or deltoid ligament rupture

40
Q

Define Jones Fracture

A

Transverse fracture through the diaphysis of the 5th metatarsal

41
Q

Identify the injury described:

Axial loading to plantar flexed foot
Pain along the dorsum of the mid foot
Swelling and ecchymosis along plantar aspect/arch
Fleck sign on x-ray

A

Lisfranc injury: Midfoot dislocation

Fracture at the base of the 2nd metatarsal

Emergency Med (10 decks)

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