Shoulder and Upper Arm Flashcards
What makes up the shoulder joint proper
Humerus and the gleaned part of the scapula
What is important in stabilising the shoulder and also in producing shoulder rotation
The rotator cuff muscles
What is the function of the deltoid
power of abduction
What is Sprengel’s shoulder
A congential condition in which the scapula is higher and small than usual and also rotated into adduction
What results in a fracture of the clavicle
All onto the shoulder or the outstretch hand
What is the treatment for a fractured clavicle
Supporting the weight of the arm in a broadarm sling
Occasionally internal fixation
How do fractures of the accordion and scapula occur
direct blow or fall and rarely displaced
What causes a subluxation or dislocation of the acromioclavicular joint
fall onto the shoulder often as a result of sport
What does a complete dislocation of the acromioclavicular joint involve
rupture of the superior and inferior acromioclavicular ligaments and the coracoclavicular ligament
What are the clinical features of a subluxed or dislocated acromioclavicular joint
Outer end of the clavicle is abnormally prominent and tender usually with some additional swelling
Restricted shoulder movements
What is the treatment for a subluxed or dislocated acromioclavicular joint
Broad sling
How do dislocations of the shoulder occur
following a fall on the arm or shoulder
What happens to the deltoid muscle in an anterior dislocation
it becomes flattened- loss in the curved contour of the shoulder and becomes squared off
What is the characteristic feature of a posterior shoulder dislocation
Light bulb appearance
What should be done if there is any doubt about a shoulder dislocation
CT scan