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PT 506 Kinesiology > Shoulder > Flashcards

Shoulder Flashcards

1
Q

ER base position range

A

40-60 degrees

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2
Q

ER 90 Abd range

A

90-100 degrees

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3
Q

IR 90 Abd

A

45-60 degrees

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4
Q

Flexion ROM

A

170-180 degrees

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5
Q

Abduction ROM

A

170-180 degrees

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6
Q

Scaption ROM

A

170-180 degrees

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7
Q

Function Internal Rotation ROM

A

T5 spinous process

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8
Q

Functional External Rotation ROM

A

T3 spinous process

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9
Q

Horizontal Abduction ROM

A

120-140 degrees

Arm starts in front

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10
Q

Horizontal Adduction ROM

A

40-60 degrees

Arm starts in front

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11
Q

Extension ROM

A

60-80 degrees

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12
Q

Upward Rotation contributes to stability by…

A

Using the glenoid as a buttress

Using the Coracohumeral ligament and superior glenohumeral ligaments

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13
Q

Downward rotation of scapula is…

A

Pathologic

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14
Q

Scapular dumping

A

Relaxation of CH & SGHL ligaments
Potential for false positive sulcus test
Inappropriate diagnosis of Multidirectional instability

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15
Q

AMBRI

A

Atraumatic, Multidirectional, Frequently bilateral, responds to rehabilitation, rarely requires Inferior capsular shift

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16
Q

TUBS

A

Traumatic Unilateral Lesion w/ Bankart lesion and usually requires surgury

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17
Q

Sagittal Plane Static posture scapula

A

Anterior tilt 9-20 degrees

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18
Q

What role would an exaggerated thoracic kyphosis and abnormally elevated position of the scapula play in sagittal plane posture of the bone

A

Both increase anterior tilt of the scapula, probably increase probability of inpingement

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19
Q

External impingement

A

Compression of bursal side of muscle

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20
Q

Internal impingement

A

Compression on underside of muscle

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21
Q

Scapular Plane

A

30 degrees anterior to the frontal plane

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22
Q

Scapulo-clavicular angle

A

50 degrees

Angle from scapular plane to clavicle

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23
Q

Clavicular retraction angle

A

20 degrees

Angle from sternal head to acromial head

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24
Q

Five motions of the scapula

A 
Elevation/Depression
Protraction/Retraction
Anterior/Posterior Tilt
Medial/Lateral rotation
Upward/downward Rotation
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25
Q

Anterior/Posterior Tilt coupled with

A

Protraction/Retraction

Upward/Downward rotation

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26
Q

Medial rotation

A

Directs glenoid medially

27
Q

Lateral Rotation

A

Directs glenoid laterally

28
Q

Scapular Winging

A

Posterior displacement of medial border of scapula
Serratus Anterior Pathology
Long thoracic nerve

29
Q

Upward/Downward scapular rotation coupled with…

A

Clavicular elevation/Depression

30
Q

Upper extremity elevation motions

A

Scapular: Abduction, Elevation, Medial rotation, Anterior tipping, Upward rotation
Clavicular: Elevation, Posterior rotation,

31
Q

AC joint structure

A

Convex lateral clavicle & concave acromion
Synovial joint with fibrocartilagenous disc
Stabilized by conoid, trapezoid, AC ligaments

32
Q

AC Joint motion

A

Anterior/Posterior Tipping
Medial/Lateral Rotation
Upward/Downward rotation

33
Q

SC joint structure

A

Synovial w/ articular disc

Only UE boney linkage to axial skeleton

34
Q

SC joint motions

A

Elevation/Depression
Protraction/Retraction
Posterior/Anterior Rotation

35
Q

Frontal Plane SC joint

A

Convex clavicle on

Concave sternum

36
Q

Saggital Plane SC joint

A

Concave Clavicle on

Convex sternum

37
Q

SC joint elevation

A

Superior Roll Inferior glide 45 degrees from neutral

38
Q

SC Depression

A

Inferior Roll Superior glide 15 degrees from neutral

39
Q

SC joint retraction

A

Posterior roll posterior slide

15 degrees

40
Q

SC joint protraction

A

Anterior Roll anterior slide

15 degrees

41
Q

Posterior SC joint rotation

A

Posterior rotation coupled with scapular upward rotation

30-55 degrees

42
Q

Glenoid Cavity

A

1/4 to 1/3 surface of humeral head
Greater concavity S:I than A:P
A:P instability relative to S:I

43
Q

Humeral Head angle of inclination

A

130-150 degrees

44
Q

GH elevation ROM

A

0-120 degrees

45
Q

ER during UE elevation

A

Prevents impingement of greater tubercle against acromion

Provides greater humeral head articulation

46
Q

Scapulohumeral Rhythm purpose

A

Increase elevation ROM
Inferior stability of GH joint
Maintain optimum length tension relationship for mm.

47
Q

Serratus vs. Trapezius Abduction

A

Trap more important than serratus
Serratus paralysis ROM is still full
Trap paralysis ROM is 75 degrees

48
Q

Serratus vs. Trapezius Flexion

A

Serratus more important than trap
Trap paralysis ROM is still full
Serratus paralysis reduced ROM
Trap can only produce 20 degrees UR in this plane

49
Q

GH stability

A 
Negative intrarticular pressure
Labral concavity
Capsular constraint mechanism
Scapulohumeral muscles
Capsuloligamentous restraint
50
Q

Negative Intrarticular Pressure

A

-42cm H20
Venting produces immediate inferior subluxation
Reduced force is necessary to translate humeral head in other directions

51
Q

Labrum Concavity Compression

A

Intact labrum the GH joint resists dislocation forces up to 64% of compressive loads
20% reduction in effect with labrum removed

52
Q

Stability ratio (%)

A

(Translational force/ Compressive load) X 100

53
Q

Scapulohumeral Muscle contraction

A

Component forces compress humeral head into the glenoid

90% body weight at 90 degrees of elevation

54
Q

Soft Tissue Buttress

A

Scapulohumeral muscle centers the humeral head in the glenoid

55
Q

Capsular Constraint Mechanism

A

End range osteokinematic motion will take the slack out of ligament or capsule
Direction of force is opposite to anatomical location

56
Q

Tight Anterior Capsule

A

Posterior humeral head translation at endrange

57
Q

Capsuloligamentous structures

A

SGHL
MGHL
IGHL-3 bands (Anterior, Axillary pouch, Posterior)
CHL

58
Q

Resists flexion w/ External Rotation

A

Anterior coracohumeral ligament

59
Q

Resists Flexion w/ internal rotation

A

Middle posterior capsule

60
Q

Resists Abduction w/ external rotation

A

Posterior Coracohumeral ligament

61
Q

Resists abduction w/ internal rotation

A

Inferior posterior capsule

62
Q

Anatomical position primary stabilizer

A

SGHL and MGHL

63
Q

45 degrees scaption primary stabilizer

A

MGHL resists anterior translation

64
Q

90 scaption primary stabilizer

A

IGHL anterior band anterior translation

IGHL posterior band posterior translation

PT 506 Kinesiology (10 decks)

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