RC Pathology: Shoulder Impingement Flashcards
subacromial impingement can lead to what?
RC tendonitis
with subacromial impingement, you will see excessive ____ translation of the humeral head with elevation
superior
scapular ____ can contribute to impingement
dyskinesia
what are the 2 main types of shoulder impingement, and which one is more common?
- subacromial impingement (more common)
- posterior internal impingement
describe what happens in subacromial impingement
abrasion of soft tissue structures located between the humeral head and the roof of the shoulder
what 3 things can contribute to subacromial impingement?
- shape of acromion
- calcific bone spur
- tendon thickening
what is some common soft tissue that can be involved with subacromial impingement?
- supraspinatus (primary)
- long head of biceps
- subacromial bursa
with posterior internal impingement, the subacromial space appears to be ____
normal
describe what happens in posterior internal impingement
impingement of RTC muscles against posterior superior glenoid labrum and humeral head
impingement is more common after what age?
30
repeated overhead activities greater than ____ degrees can contribute to impingement
90
what muscles, if weak, may contribute to impingement?
middle and lower trap
what muscles, if tight, may contribute to impingement?
pecs
what type of postural imbalance is common in people with impingement?
rounded shoulders
GH capsular tightness in any direction can contribute to impingement, but ____ tightness is most common
posterior
