Upper Extremity Disorders Flashcards
What kind of joint is the shoulder?
whats unique about it?
ball and socket - very shallow socket
more ROM than any other joint
Normal func of shoulder depends on ?
normal func of supporting muscles and ligaments - stability
Shoulder pain is how often complained?
3rd MC MSK complaint
Traumatic
Atraumatic
Referred
History of present illness - Upper extremity
common chief complaints
pain
weakness
stiffness
locking
catching
deformity
lack of function
HPI - upper extremity
trauma?
focal vs diffuse pattern
dominant hand?
neurologic complaints?
Imaging
x-rays
primary study - painful shoulder
AP in internal/external rotation, axillary & scapular Y views (4 views)
Imaging -
MRI
next study of choice
rotator cuff, articular cartilage, labrum path
Imaging
Ultrasound
less sensitive/ specific than MRI
to eval. rotator cuff, biceps tendon tears, calcific deposits, impingement
operator dependent
Imaging
CT
fractures, dislocations, arthiritis
better at organs and ligaments than bones
Upper extremities - Treatment
initially conservative
pain advances = surgery
refer when - trauma; fx; full thickness ligament/ tendon tears; no response to conserv. tx after 3-6 mos
Sub-acromial impingement Syndrome
ROTATOR CUFF TENDONITIS
cause unknown (“hooked” acromion; rotator cuff weakness)
MC >40
Sub-acromial impingement Syndrome
S/S
grad onset pain/tenderness on TOP/FRONT of shoulder
Hx recent overactivity (often overhead motion)
+/- swelling
mild popping or cracking sensation?
Sub-acromial impingement Syndrome
PE
tenderness to palpa
limited ROM
normal strength (+ neer test; + Hawkins Kennedy test)
Sub-acromial impingement Syndrome
Dx
x-ray r/o assoc path
MRI - sus for rotator cuff tear or failure response conserv. tx
Sub-acromial impingement Syndrome
TX
1st line = activity modification, NSAIDs, PT
steroid injection
refer if no imprvemt 3 mos or full thickness rotator cuff tear
Surgery after 6 mos
Sub-acromial impingement Syndrome
Prognosis
most return to normal func w/i 6 mos
Calcific tendinitis
calcification of tendon w/ spontaneous resorption
Calcific tendinitis
Clin Pres
min. / no sympt. - formative phase
acute pain - resorptive phase
Calcific tendinitis
PE
may mimic subacromial impingement
strength diff. to assess from pain
Calcific tendinitis
DX
x-rays
Calcific tendinitis
Tx
same as subacromial impingement (80% improve non-op tx)
daily exercise when acute pain gone
Rotator Cuff
stabilizes shoulder - holds head of humerus against glenoid fossa
Rotator cuff muscles and actions
Supraspinatus (aBduction)
Infraspinatus (ex. rotation)
Subscapularis (ex. rotation)
Teres Minor (in. rotation)
Rotator cuff injuries MC in what pop?
older
younger - from trauma/overuse
Rotator cuff tear
Mechanism
injury during fall
FOOSH OR direct blow
rep. overhead mvmt and lifting
Rotator cuff tear
Clin pres
PAIN - OUTSIDE of shoulder and deltoid region
worse w/ specific mvmts
limited ROM
diff. overhead mvmt
May have crepitus, catching or stiffness
Rotator cuff Injuries
PE
Weakness of particular muscle involved
Passive ROM normal, painless
Inability to abduct (shoulder shrug)
Rotator cuff injuries
Dx
clinical
MRI gold standard
x-rays - bone spurs, high-ride humeral head, <7mm space
Rotator cuff injuries
Tx
conservative if no dramatic/progr. weakness
early surgery sometimes
surgery if conserv fails
Shoulder Instability
common cause disability and pain young adults
Shoulder Instability
2 types and MC in who
Unidirectional (males)
Multidirectional (females) - overuse
Shoulder Instability
clin pres
pain
varying degree instability
sensation of subluxation
Shoulder Instability
PE
assess ligamentous & joint laxity - if underlying CT disorder (Marfan, Ehlers-Danlos)
muscle atrophy?
decreased ROM
Shoulder Instability
DX - x-rays
usually normal
Impression fx posterolateral humeral head (Hill-Sachs lesion)
posterior or ant glenoid bone loss
Shoulder Instability - Dx
MRI
if no improve w/ initial tx
Shoulder Instability
Tx
PT - restore strength muscles
Surgery - recurrent sympt.
Shoulder Dislocations
(2 types and how you get them)
Anterior 95% = MC mech.
(FOOSH, abducted arm)
Posterior 5% = MC mech - direct blow ant shoulder, seizure, electrocution
(forced adduction, in. rotation)
Risk of dislocation (shoulder) increased by ..
poor scapular control
rotator cuff strength
Shoulder dislocations can cause ___ tears
labral
increased risk recurrent dislocations ( <21 yo)
Shoulder Dislocations
Clin pres
pain/instability
obvious deformity
Arm ABDUCTED AND EXTERNALLY ROTATED (ant.)
Shoulder Dislocations
Dx
x-rays
MRI - soft tissue injury concern (often w/ labral tear, rc injury)
Shoulder Dislocations
MRI buzzwords
BANKART LESION - detachment ant (inferior) glenoid labrum from rim
HILL-SACHS LESION - defect posterolateral hum head when abraded by ant rim glenoid
Shoulder Dislocations
Tx
reduction ASAP
immobilization/pendulum exercises
PT
pain control
surgery = recurrent
Acromioclavicular Joint (AC) Sprains/Separations
direct blow to tip/edge shoulder OR upward force exerted on long axis of humerus
Acromioclavicular Joint (AC) Sprains/Separations
Grade 1
joint intact
mild stretching AC lig
point tenderness to AC joint
Acromioclavicular Joint (AC) Sprains/Separations
Grade 2
disruption sup and inf AC lig
point tenderness
decreased ROM
instability w/ stress testing
Acromioclavicular Joint (AC) Sprains/Separations
Grade 3
disruption sup and inf AC lig & coracoclavicular lig
SEVERE pain
deformity w prominence
instability and decreased ROM
Acromioclavicular Joint (AC) Sprains/Separations
can do what motion?
lift arm above shoulder - painful
Acromioclavicular Joint (AC) Sprains/Separations
Tx
sling
pain control
PT
Shoulder osteoarthritis
less common then hip or knee OA
pain and stiffness ; gradual, chronic, progress.
discomfort worse w/ activity (limited overhead, reaching behind back or under opposite axilla)
Shoulder osteoarthritis
Dx
x-rays = joint -space narrowing (w/ any arthritis)
osteophyte formation; sclerosis; subchondral cysts
Shoulder osteoarthritis
Tx
acetaminophen, NSAIDs
PT
steroid injections
surgery - last resort, arthroscopic debride -> total joint replacement
AC joint arthritis
OA of AC joint
AC joint arthritis
clin pres
dull, aching deltoid - worse by mvmt
pain sleeping on affected side
AC joint arthritis
Dx
PE
x-rays
MRI?
steroid injection - diagnostic and therapuetic (ortho)
AC joint arthritis
Tx
activity mod, ice
pain control
steroid injection
surgery? - distal clavicle resection
Bicipital Tendinitis
inflamm of long head biceps tendon
Bicipital Tendinitis
cause
overuse
Bicipital Tendinitis
occurs in who
yound, middle-aged, elderly
Bicipital Tendinitis
Clin pres
pain ANTERIOR shoulder extends distally; worse w/ lifting, pulling, supination, overhead
weakness
pain WORSE AT NIGHT
Bicipital Tendinitis
PE
point tenderness intertubercular sulcus
painful abduction & external rotation
Bicipital Tendinitis
Dx
clinical
x-ray or MRI r/o other path
Bicipital Tendinitis
Tx
activity mod
NSAIDs
PT
steroid injections
Bicipital Tendinitis
Test
Speed’s test
Yergason’s test
Fractures
Scapula
high energy injury
look for other trauma/injuries to UE and torso
Fractures
Clavicle
85% mid 1/3 clavicle
MC ped fx (can happen w/ birth)
Fracture
Humerus (locations)
humeral head
Shaft
condyle
Fractures - treatment
reduce if not in anatomic alignment (sling/cast, immobilize)
+/- surgery (refer)