Shoulder Flashcards
Describe resting position for the GH joint
55* abduction, 30* horizontal adduction
In what direction do roll and glide go for the GH joint?
roll in the same direction, glides in the opposite
What is the CPR for the shoulder?
ER > abd > IR
What is closed pack position for the SC joint?
full elevation and protraction
What is resting position for the AC and SC joints?
arm resting at side
What is the CPR for the AC and SC joints?
pain at extreme ROM - especially horizontal adduction & full elevation
What are the expected ROM for the shoulder joint?
180 flex/abd 100 horizontal abd 90 ER 70 IR 60 EXT 45 add/horizontal add
SC joint is a ___ joint, AC joint is a ___ joint.
saddle, planar
The SC joint is convex ____ and concave ____.
convex superior-to-inferiorly
concave anteriorly-to-posteriorly
In order for maximal abduction of the arm to occur, __* of ___ is required.
90* of lateral rotation
In order for the shoulder to abduct 180, the arm has to abduct ___ and the scapula must upwardly rotate __*
arm: 120*
scapula: 60*
The rotator cuff helps stabilize/maintain the position of the humeral head in the glenoid fossa. Which depress and which elevate it?
depress: infraspinatus, subscap, teres minor, supraspinatus (late stages of abduction)
elevate: deltoid, supraspinatus (early stages of abduction)
What is the most common cause of shoulder pain in adults?
impingement syndromes
Impingement syndrome pain has a significant ___ pain component.
nocturnal
Extrinsic impingement is a result of ____
mechanical wear of rotator cuff against anteroinferior 1/3 of acromion in the suprahumeral space during humeral elevation
Primary extrinsic vs. secondary extrinsic impingement are usually due to:
primary: anatomical or biomechanical factors
secondary: hypermobility or instability
The subacromial space is narrowed by excessive ___ and ___ of the scapula
anterior tilt & protraction
internal rotation of humerus
What is the most important function of the inferior GH ligament?
supports humeral head above 90* abduction by limiting inferior translation
The posterior band of the GH inferior ligament is most effective during __ of the humerus, while the anterior band of this ligament tightens to function most during ___.
posterior: medial rotation
anterior: lateral rotation
How would you perform the Active Compression of O’Brien test?
Step 1: Patient’s arm is forward flexed to 90, elbow extended, arm adducted to 10-15 and full pronation.
Step 2: Repeat with forearm fully supinated.
Downward force is applied for each of these.
What would be a (+) result for the active compression of O’Brien test?
pain on joint line or painful clicking that is apparent in part 1 but eliminated or decreased in part 2
What special test is this?
Patient supine, hold the humerus proximal to the elbow and fully abduct the arm over the patient’s head. Place one hand on posterior aspect of humeral head and push anteriorly while holding the arm in lateral rotation.
Clunk test
What special test is this?
Patient’s shoulder is flexed to 90* and medially rotated with elbow flexed to 90*
What can it be adapted to? How?
Hawkins-Kennedy
Coracoid impingement test, but you bring the arm 10-20* horizontally adducted before applying medially rotation.
A (+) result for the Hawkins-Kennedy test would be either…
pain –> supraspinatus tendonosis or secondary impingement
CPR for the acromioclavicular joint is…
??
CPR for the sternoclavicular joint is…
pain at extreme end ROM - especially horizontal adduction and elevation
During abduction at the GHJ, the first _ ribs ____, while all others elevate
2 ribs descend
When the arm abducts at the GHJ, the clavicle will __ and ___ rotate
elevate & posteriorly rotate
If total arm elevation is 180*, how much is scapulothoracic?
60*