Shoulder Flashcards
What type of acromion are you most likely to see impingement with?
Type III
The _______ _____ = inferior part of the capsule that allows you to bring your arm into elevation
dependent fold
GHJ concavity compression phenomenon = ______ effect
suction
There is ________ intra-articular pressure in the GHJ
negative
The capsule controls ______ of the humeral head on the glenoid fossa
translation
What 3 movements tighten the posterior capsule?
- flexion
- adduction
- IR
What 3 movements tighten the anterior capsule?
- extension
- abduction
- external rotation
What direction do fibers of the GHJ run in?
Every direction
The capsule attaches to the _____ in the back and the ______ at the front
glenoid; humerus
What are 3 structures at risk of impingement below the acromion?
- long head of biceps
- supraspinatus
- subacromial bursa
The RC provides a ____ force for the humerus.
shunt
The force of the RC has a slightly _______ vector, whereas the posterior cuff has a slightly _______ vector
downward; upward
If you want to increase subacromial space, strengthen what 3 muscles/groups?
- SA
- Trapezius
- RC
If the RC is weak, we might see _______ translation of the humeral head.
upward
Ideal shoulder function = humerus is centred in the _______
glenoid
With shoulder pain, what are the 2 main presentations?
- stiff shoulder
2. the hyper mobile
What are 4 possible causes of stiff shoulder?
- habitual postures
- muscle imbalance
- post traumatic
- post surgical
Stiff shoulder may result in biomechanical compensation at other joints. Name 3
- neck
- elbow
- wrist
The pattern of loss of ROM will depend on what?
whether all or some of the capsule is tight
Is global or regional capsular tightness more common?
regional
Anteriorsuperior capsule _____ the humeral head anterosuperiorly
pulls
ALL portions of the capsule besides the anterior superior portion _____ the humeral head away from the tight area
push
What movements will you lose with anterosuperior capsule tightness?
ER and end range abd
With anterosuperior capsule tightness, impingement will occur in _______ _____/____
horizontal add/IR
Anterosuperior capsule tightness decreases _______ glide of the humerus
posteroinferior
With posterior capsule tightness, there will be a limitation of _______ ______ and _____
horizontal adduction and IR
With posterior capsule tightness, the humerus will have an ______ resting position with decreased ______ glide
anterior; posterior
With posterior capsule tightness, there will be weakness of _____ _______ and ______ ______
ER; scapular stabilizers
With impingement, the limitation is in the painful range, usually between __-__ deg abd/flex
90-120
What are 3 causes of impingement?
- structural
- capsular tightness
- muscle imbalance
What are 4 impingement tests?
- neers
- Hawkins kennedy
- empty can
- full can
Impingement can lead to what 5 things?
- RC tendinopathy
- bone spurs on the acromion
- burisitis
- muscle imbalance
- altered biomechanics
What are 4 treatments for impingement?
- joint glides
- massage to capsule and soft tissues
- exercise
- education
What are 6 steps in a RC assessment?
- test for strength and/or pain
- resisted ER
- empty can test
- full can test
- subs cap lift off
- drop arm test
When strengthening for shoulder pain, start with _______ stability before progressing to the ___.
scapular; RC
______ is useful to determine RC tear or Ca deposits
US
Shoulder X-rays are rarely useful unless you’re suspicious of a # (T/F).
TRUE
