Shoulder Flashcards

1
Q

Posterior drawer test/Posterior load and shift test

  • Position
  • Mistakes with testing
A

Position: 90 deg abd in scapular plane
Mistakes: testing in coronal plane and direct posterior glide instead of posterolateral motion

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2
Q

Testing IR passively

- Position

A

Coronal plane in supine with posterior translation along coracoid (anterior aspect) and shoulder

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3
Q

IR ROM stretching position for high posterior capsule strain

A

30 deg shoulder elevation in scapular plane (scaption)

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4
Q

6 types of synovial joints

A
  1. Pivot 2. Ball and Socket 3. Plane 4. Hinge 5. Condyloid 6. Saddle
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5
Q

AC joint ligaments (3)

A
  1. Acromioclavicular 2. Coracoacromial 3. Coracoclavicular (conoid, trapezoid)
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6
Q

Glenohumeral ligaments (3)

A
  1. Superior 2. Middle 3. Inferior
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7
Q

Pectoral region muscles (4)

A

Pectoralis major and minor, serratus anterior, subclavius

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8
Q

Pec major

A, F, I

A

Attachment: anterior medial half of clavicle; sternum, costal cartilages of ribs 1-6; anterior layer of rectus sheath; greater tubercle of humerus
Innervation: lateral pectoral n. to clavicular head (C5-7); medial pectoral n. to sternal head (C8, T1)

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9
Q

Subcalvius

A, F, I, AS

A

A: clavicle subclavian groove; origin: first rib
F: depression of clavicle elevation, elevation of 1st rib
I: subclavian n.
AS: thoracoacomial trunk, clavicular branch

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10
Q

Serratus Anterior

A, F, I, AS

A

A: 2nd<>9th ribs (origin) costal aspect of medial margin of scapula (insertion)
F: protracts/stabilizes scapula, assist with upward rotation
I: long thoracic n. (C5-C7)
AS: lateral thoracic a., superior thoracic a. (upper part), thoracodorsal a. (lower part)

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11
Q

Upper brachial plexus injury MOIs and presentation

A

MOIs: 1. birthing traction on neck 2. fall on neck
Presentation: dislocated look of shoulder

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12
Q

Lower brachial plexus injury MOIs and presentation

A

MOIs: 1. hanging from branch/ladder with a fall 2. birthing traction on baby’s arm; claw hand with radial n. finger extension deficit

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13
Q

Sections of brachial plexus

A

Roots, Trunks, Divisions, Cords, Terminal branches

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14
Q

Dorsal scapular n.

  • root(s)
  • innervates
A
  • C5

- Rhomboids and levator scapulae muscles

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15
Q

Long thoracic n.

  • root(s)
  • innervates
A
  • C5-7

- SA muscle

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16
Q

Suprascapular n.

  • root(s)
  • direction/location
  • innervates
A
  • C5-6
  • passes through scapular notch
  • supraspinatus, infrapsinatus, and shoulder joint
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17
Q

N. to the subclavius
roots
innervates

A
  • C5-6

- Subclavius and slips to SCJ

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18
Q
Median n.
branches in arm? 
muscles innervated (general) 
cutaneous innervation area
entrapment?
A

No branches in arm
Forearm and hand muscles
cutaneous distribution in hand
Commonly entrapped

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19
Q
Upper lesions of brachial plexus 
dx name  
roots involved 
nerves involved
presentation
A

Dx: Erb-Duchenne Palsy “waiter’s tip”
Roots: C5-6 torn
Nerves affected/involved: suprascapular n., musculocutaneous n., axillary n.
Presentation: atrophy of deltoid and biceps br. and medially rotated (IR) arm

20
Q
Lower brachial plexus injury
dx name
roots involved
nerves involved
presentation (and why)
A

Dx: Klumpke palsy
Roots: C8, T1 torn
Nerves involved: Median and ulnar n’s.
Claw like hand
- lumbrical muscle and interosseous muscle dysfunction
- forearm extensors and flexors unopposed

21
Q

Winged scapular - peripheral n. damage

- which nerve?

A

Long thoracic n. => SA inhibition/dysfunction

22
Q

Wrist drop - peripheral n./brachial plexus damage

A

Radial n. => forearm extensor force production (posterior compartment of forearm)

23
Q

Saturday Night Syndrome - what is it? what nerves/structures involved?

A

compression injury of brachial plexus with potential axillary artery/vein occlusion => ischemia

24
Q

Pectoralis minor

A, F, I, AS

A

attachment: 3rd-5th ribs to medial border and superior surface of the coracoid process of the scapula
function: stabilizes scapular - protracts scapular, rib elevation with inspiration
innervation: medial pectoral n. (C8)
arterial supply: pectoral br. of the thoracoacromial tr.

25
Q

Types of ACJ injuries: 6 types including structures involved

A
  1. AC sprain w/o tear.
  2. AC ligament and capsule are ruptured
  3. Complete AC and CC ligaments ruptures - “step off deformity”
    4-6. similar to type 3 with increasing soft tissue trauma and clavicular displacement.
26
Q

Shoulder motions that place increased stress on ACJ

A

IR behind the back
horizontal adduction
end-range flexion and extension

27
Q

MOI for ACJ injuries

  • common types
  • common activities leading to injury(ies)
A

direct blow or fall on shoulder w/ adduction
football, hockey, skiing, snowboarding, and bicycling
**common in football athletes with shoulder injuries

28
Q

Ligaments of the ACJ

A

Coracoclavicular ligament complex (conoid and trapezoid) and acromioclavicular ligament

29
Q

Acromioclavicular ligament function

A

stabilization of ACJ in AP plane

30
Q

Coracoclavicular ligament complex (conoid and trapezoid) function
+ conoid restricts what?

A

majority of vertical stability

conoid ligament: restricts superior and anterior translation and superior and anterior rotation of the clavicle

31
Q

Motion that places greatest strain on coracoclavicular ligament (conoid and trapezoid)

A

Shoulder extension

32
Q

Two common/safest surgical interventions for ACJ repair

A

Tightrope and end button closed loop

  • both use drilled holes with buttons through coracoid and acromion.
  • allograft or autograft
33
Q

standard bracing for ACJ repair for how long

A

Platform bracing for 6-8 weeks

34
Q

Four points of conservative rehabilitation for Type 1-3 ACJ injuries

A

Short term immobilization
Medication for symptom relief
Progressive ROM
Strengthening

35
Q
Frozen shoulder/Adhesive capsulitis: 
percentage of population affected 
increased risk populations 
common age group(s)
odds of second shoulder being affected in presence of one side
A

2-5% of population affected
11-38% likelihood with pts with thyroid dz and DM
40-65 years old
females more than males
increased risk of 2nd shoulder experiencing FS (5-34%, 14% chance of B shoulders at once/same time

36
Q

What is the Rotator Cuff Interval?

A

RCI = anterior edge of supraspinatus, superior aspect of superior glenohumeral ligament, superolateral border of subscapularis and deep surface of coracohumeral ligament

37
Q

Areas of shoulder to focus on mobilizing with FS/adhesive capsulitis

A

GH capsuloligamentous complex and rotator cuff interval

38
Q

What are the four stages of FS per Neviaser and Neviaser?

A
  1. Pre-adhesive stage - painful (commonly misdx’d as RC impingement
  2. Acute adhesive stage (Freezing) - thickened red synovitis; 3-9 month period; highly painful
  3. Fibrotic stage (Frozen) - 12-15 months after onset; significant stiffness, less pain
  4. Thawing stage - painless stiffness; remodeling leads to improved motion by 15-24 months
39
Q

Diagnosis of FS

A

> 25% loss of ROM in IR, flexion, and abduction with >50% ER PROM compared to contralateral side or <30 deg ER on affecte side with PROM
* most RC impingement won’t show the significant ER loss present with FS

40
Q

FS: idiopathic vs primary

A

Are the same

41
Q

Three types of secondary FS

A
  1. Systemic (i.e. DM, thyroid dz)
  2. Extrinsic (i.e. w/ CVA, MI, COPD, CDD, distal extremity failure)
  3. Intrinsic (RC tendinopathy, biceps tendinopathy, CJ or GHJ athropathy)
42
Q

What is the irritability level classification?

A

System used to assess pt pain, assisting with relative grading of present pain (particularly useful for FS monitoring)

43
Q

Dosage of “stretching” for pt’s with FS are (2)

A
  1. Stage of FS

2. Irritability classification

44
Q

What is TERT?

A

Total end-range time = Frequency x Duration of time at end-range motion

45
Q

When stretching the capsuloligamentous complex, how should it be visualized?

A

with the circle concept