shoulder dislocation Flashcards
shoulder dislocation
head of humerus comes entirely out its socket (glenoid cavity of scapula)
shoulder subluxation
partial dislocation - does not fully come out socket
most common shoulder dislocation
anterior dislocation
head of humerus moves anteriorly in relation to glenoid cavity
anterior dislocation mechanism
arm is forced backwards whilst abducted and extended
imagine someone reaching up and out to try catch a heavy rock travelling towards them
what are posterior dislocations assoc w
electric shocks
seizures
potential assoc damage
glenoid labrum tear bankart lesion hill-sachs lesions axillary nerve damage*** fractures rotator cuff tears
potential assoc damage - bankart lesions
tears to anterior portion of labrum
potential assoc damage - hill-sachs lesions
compression fractures of posterolateral part of humeral head
potential assoc damage - axillary nerve damage
C5 and 6
loss of sensation over regimental badge area
motor weakness of deltoid and teres minor
potential assoc damage - fractures
can occur alongside shoudler dislocation - affecting
- humeral head
- greater tuberosity
- acromion of scapula
- clavicle
shoulder dislocation presentation
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
important to assess pt w shoulder dislocation for…
fractures
vascular damage - absent pulses, prologed cap refill, pallor
nerve damage - loss sensation
Ix
xray
MRI
arthrroscopy
shoulder relocation when
shoulder should be relocated as soon as safely possible - muscle spasms over time make it harder to do and increase risk neurovascular damage
acute management
analgesia, muscle relaxants and sedation entonox broad arm sling closed reduction - once # excluded post-reduction x-ray immobolisation
