Shoulder DDX Flashcards
If you suspect a muscle/tendon ddx what are 4 possible pain generator?
- large/full tear (grade 3)
- small tear/ tendinopathy (grade 1-2)
- impingement syndrome
- calcific tendinitis
If you suspect a joint/lig/bone ddx, what are 4 possible pain generators?
- AC (or SC) sprain
- Bursitis/capsulitits/frozen shoulder
- labrum tear
- fracture/dislocation
Age >65 AND ext rot weakness AND night pain dx?
rupture/large rotator cuff tear
+ ext and int rotational lag sign dx?
large tear, grade 3
+ lift off test, which muscle?
subscapularis
+ arm dropping sign/drop sign dx?
Infraspinatus large tear, grade 3 (may also be associated with supraspinatus rupture)
+ napolean’s sign/belly press dx?
large tear of subscapularis
+ hug test dx?
large tear of subscapularis, gr 3
+ arm drop/codman’s arm drop dx?
supraspinatus tendinopathy, may inclue a large tear
+ hornblower’s sign dx?
teres minor
+ codman’s arm drop AND painful arm AND ER weakness or a lag sign dx?
Supraspinatus large tear
Age > 39, painful arc, self report of popping or clicking dx?
Supraspinatus tendinopathy
hx of overhead activities/aggravation, painful arc, neer’s sign, hawkin’s kennedy, ext rotation weakness dx?
impingement syndrome
What can be impinged ? (3)
- supraspinatus
- long head biceps tendon
- subacromial bursa
- Severe pain at rest and with movement in any direction
- extreme sensitivity with palpation just inferior to lateral acromion
- Gerber’s/lift off test (he said not to worry about this test)
dx?
- Gerber’s/lift off test (he said not to worry about this test)
bursitis
Severe pain at rest ddx?
acute bursitis, calcific tendinitis
- severe pain at rest
- aggravated by ROM in all directions whether active or passive
- possible aggravated by horizontal adduction whether active or passive
- isometric mm test- painless or only mildly provocative
C. Capsulitis
1.ROM restriction in capsular pattern, sig restriction of AROM and PROM with pain, esp ext rot and abduction
2. preceded by acute symptomatic shoulder condition
3. pain with resisted mm testing
4. pain may have gradually subsided, but motion restriction increases
DX?
Frozen shoulder
DX?
- Trauma to the clavicle (blow to posteriosuperior point of shoulder, fall on outstretched hand, heavy lifting).
- Swelling, possible deformity (step defect).
- Patient may present with arm cradled in opposite hand.
- Point tenderness
- Pain with active arm raising (flexion or abduction), external rotation, active horizontal adduction.
- Neck and shoulder spasms are common.
- These follow-up tests are recommended: cross body adduction, acromioclavicular resisted extension, and active compression (O’Brien).
AC sprain/joint separation
DX?
- Traumatic (e.g., sudden or excessive loading) or overuse (e.g., overhead).
- May be isolated, part of impingement syndrome, or associated with anterior instability.
- Anterior shoulder/arm pain exacerbated by lifting, pulling, and overhead activities.
- Point tenderness over tendon (intertubercular groove).
- Pain with biceps resistance: elbow bent, elbow straight (Speed’s test). Unfortunately most of the individual biceps muscle tests are not very accurate.
- Pain with passive stretch (biceps extension test).
- May have positive impingement sign (with external rotation, palm up).
- If the tendon is unstable, history of snapping, positive modified Yergasen’s Test
- May cross react with some labrum tests such as biceps provocation and biceps load,
biceps tendinopathy
DX?
- hx acute onset of anterior shoulder pain following a popping or tearing sensation
- hx of chronic tendinopathy or steroid injections
- sudden or forceful contraction or sudden stretch
- Weak and painful elbow flexion and/or supination, possibly no pain with contraction if complete tear
- rolled up deformity
- visible swelling or bruising occurs occasionally
biceps rupture
DX?
- acute excruciating pain, no positional relief, may occur after period of intense use of shoulder
- all AROM are painful
- subtle heat or edema may be present
- passive abduction most painful, followed by passive int. or ext. rotation
- extreme tenderness on palpation
- resisted mm testing may be painful in all directions
Bursitis
Dx?
- Often very severe pain at rest and intense pain with movement in any direction.
- Pain with most/all AROM; often patient supports injured extremity with opposite hand.
- Nontraumatic (sometimes associated with overuse).
- No fever or signs of systemic disease.
- often middle-aged female, sedentary, nondominant arm
Acute calcific tendinitis
Dx?
- painful arm in one direction: elevation, flex or abduction or rotation
- may be sx-free, if painful, not as intense and disabling as acute
Chronic calcific tendinitis