shoulder dislocation Flashcards Preview

Orthopaedics > shoulder dislocation > Flashcards

Flashcards in shoulder dislocation Deck (16)
Loading flashcards...
1
Q

shoulder dislocation

A

head of humerus comes entirely out its socket (glenoid cavity of scapula)

2
Q

shoulder subluxation

A

partial dislocation - does not fully come out socket

3
Q

most common shoulder dislocation

A

anterior dislocation

head of humerus moves anteriorly in relation to glenoid cavity

4
Q

anterior dislocation mechanism

A

arm is forced backwards whilst abducted and extended

imagine someone reaching up and out to try catch a heavy rock travelling towards them

5
Q

what are posterior dislocations assoc w

A

electric shocks

seizures

6
Q

potential assoc damage

A
glenoid labrum tear
bankart lesion 
hill-sachs lesions
axillary nerve damage***
fractures
rotator cuff tears
7
Q

potential assoc damage - bankart lesions

A

tears to anterior portion of labrum

8
Q

potential assoc damage - hill-sachs lesions

A

compression fractures of posterolateral part of humeral head

9
Q

potential assoc damage - axillary nerve damage

A

C5 and 6

loss of sensation over regimental badge area
motor weakness of deltoid and teres minor

10
Q

potential assoc damage - fractures

A

can occur alongside shoudler dislocation - affecting

  • humeral head
  • greater tuberosity
  • acromion of scapula
  • clavicle
11
Q

shoulder dislocation presentation

A

often preceeding acute injury

arm held against side of body, deltoid flattened and humeral head will cause a bulge and be palpable at front o f shoulder

12
Q

important to assess pt w shoulder dislocation for…

A

fractures
vascular damage - absent pulses, prologed cap refill, pallor
nerve damage - loss sensation

13
Q

Ix

A

xray
MRI
arthrroscopy

14
Q

shoulder relocation when

A

shoulder should be relocated as soon as safely possible - muscle spasms over time make it harder to do and increase risk neurovascular damage

15
Q

acute management

A
analgesia, muscle relaxants and sedation 
entonox 
broad arm sling 
closed reduction - once # excluded
post-reduction x-ray 
immobolisation
16
Q

ongoiing management

A

inc risk of recurrent dislocation

physiotherapy
shoulder stabilisatoin therapy