dislocation Flashcards
why is it the most common joint dislocation?
head of humerus is larger than glenoid fossa
what is the most common type of shoulder dislocation?
anterior
what is an anterior dislocation?
humeral head is anterior to the glenoid
fall with shoulder in external rotation
what can anterior dislocation result in?
axillary artery compromise (C5 dermatome)
what does a regimental badge area sensory assessment assess?
axillary nerve
what is badge area a buzzword for?
axillary compression
what is a posterior dislocation?
humeral head posterior to glenoid fossa
fall with shoulder in anterior location
what is a posterior dislocation usually associated with?
seizures - epileptic fit, electrocution
what is the rarest type of dilocation?
inferior
what is an inferior dislocation?
humeral head inferior to glenoid fossa
shoulder forced into hyperabduction
why does it need a prompt neurovascular assessment and reduction?
due to its proximity to brachial plexus
how do dislocations clinically present?
severe shoulder pain
inability to move shoulder
empty glenoid fossa may be visible
what investigation is used?
x-ray
which views are needed on x-ray and why?
AP shoulder
apical oblique - shows abnormal displacement posterior to articular surface of glenoid
what sign is seen on x-ray of a posterior dislocation?
light bulb sign
what is the management?
analgesia and sedation
oxygen
reduction by manipulation
what is the most common method of reduction?
hippocratic manoeuvre
what is management post reduction?
analgesia
stabilisation - 2-3 weeks
rehabilitation - gradually early mobilisation, physio
