Midterm Flashcards
What is the cause of primary impingement?
pathological narrowing of the subacromial space
What is the cause of secondary impingement?
anterior GH instability d/t repetitive overuse
What is the most common cause of shoulder pain?
impingement
What is the 3rd most frequently seen condition in general medical practice?
shoulder impingement
Structural risk factors for impingement? (4)
- acromial abnormalities 2. AC degeneration 3. altered tendon vascularity 4. calcification
Functional risk factors for impingement? (4)
- instability 2. muscular imbalance b/t int. rot./adductors and ext rot./abductors 3. tight posterior capsule 4. labral tears
Similarities in presentation of impingement for pts >35 and <35?
toothache-like pain, worse at night, worse after provoking activities
Differences in presentation of impingement for pts >35 and <35?
> 35 have shoulder weakness (d/t pain), often have crepitus, and can have complete tear of RCT w/ minor trauma
5 shoulder DDx’s?
- impingement 2. instability 3. bursitis 4. RCT 5. adhesive capsulitis
2 important DDXs to rule out w/ shoulder impingement?
- Cx sprain/strain d/t CAD 2. RA (look for bilateral Sx)
What is Neer’s pathogenesis?
3 stages of shoulder impingement
What is the first stage of Neer’s pathogenesis? Age range?
edema and tendinitis. More common in pts under 25
What is the second stage of Neers pathogenesis? Age range?
chronic inflammation, fibrosis of impinged tendon. More common in pts 25-40
What is the third stage of Neers pathogenesis? Age range?
tendon degeneration, rupture, arthritis. More common in pts over 40
Which stages of Neers pathogenesis are responsive to conservative care?
1 and 2
Physical exam: painful arc, painful active int. rot, tenderness, (+) modified Neers, Hawkins-Kennedy, possibly crepitus or instability. Dx?
shoulder impingement
T/F: superior translation and/or internal rotation of the humerus along with scapular protraction are considered “good” movements.
False
What is the difference between Tx for impingement vs. RTC?
for impingement, pt should be especially careful flexing and/or abducting the GH jt over 90 degrees
What other Tx has been shown to be effective for subacromial syndrome?
acupuncture
Are steroid injections effective for tx of impingement?
mixed results - may improve pain and function but no more effective than NSAIDs or PT
What is more effective for impingement syndrome: surgery or active, non-surgical tx?
active non-surgical tx
What is defined as “impingement d/t repetitive flexion, adduction, and internal rotation?”
swimmer’s shoulder
What Tx advice should you include for a pt with swimmers shoulder?
technique changes (avoid crossover and internal rotation, increase body roll toward pulling side of stroke)
What are the 3 types of instability?
- traumatic 2. atraumatic 3. acquired