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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
Anterior/Posterior Tilt coupled with
Protraction/Retraction | Upward/Downward rotation
26
Medial rotation
Directs glenoid medially
27
Lateral Rotation
Directs glenoid laterally
28
Scapular Winging
Posterior displacement of medial border of scapula Serratus Anterior Pathology Long thoracic nerve
29
Upward/Downward scapular rotation coupled with...
Clavicular elevation/Depression
30
Upper extremity elevation motions
Scapular: Abduction, Elevation, Medial rotation, Anterior tipping, Upward rotation Clavicular: Elevation, Posterior rotation,
31
AC joint structure
Convex lateral clavicle & concave acromion Synovial joint with fibrocartilagenous disc Stabilized by conoid, trapezoid, AC ligaments
32
AC Joint motion
Anterior/Posterior Tipping Medial/Lateral Rotation Upward/Downward rotation
33
SC joint structure
Synovial w/ articular disc | Only UE boney linkage to axial skeleton
34
SC joint motions
Elevation/Depression Protraction/Retraction Posterior/Anterior Rotation
35
Frontal Plane SC joint
Convex clavicle on | Concave sternum
36
Saggital Plane SC joint
Concave Clavicle on | Convex sternum
37
SC joint elevation
Superior Roll Inferior glide 45 degrees from neutral
38
SC Depression
Inferior Roll Superior glide 15 degrees from neutral
39
SC joint retraction
Posterior roll posterior slide | 15 degrees
40
SC joint protraction
Anterior Roll anterior slide | 15 degrees
41
Posterior SC joint rotation
Posterior rotation coupled with scapular upward rotation | 30-55 degrees
42
Glenoid Cavity
1/4 to 1/3 surface of humeral head Greater concavity S:I than A:P A:P instability relative to S:I
43
Humeral Head angle of inclination
130-150 degrees
44
GH elevation ROM
0-120 degrees
45
ER during UE elevation
Prevents impingement of greater tubercle against acromion | Provides greater humeral head articulation
46
Scapulohumeral Rhythm purpose
Increase elevation ROM Inferior stability of GH joint Maintain optimum length tension relationship for mm.
47
Serratus vs. Trapezius Abduction
Trap more important than serratus Serratus paralysis ROM is still full Trap paralysis ROM is 75 degrees
48
Serratus vs. Trapezius Flexion
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
GH stability
``` Negative intrarticular pressure Labral concavity Capsular constraint mechanism Scapulohumeral muscles Capsuloligamentous restraint ```
50
Negative Intrarticular Pressure
-42cm H20 Venting produces immediate inferior subluxation Reduced force is necessary to translate humeral head in other directions
51
Labrum Concavity Compression
Intact labrum the GH joint resists dislocation forces up to 64% of compressive loads 20% reduction in effect with labrum removed
52
Stability ratio (%)
(Translational force/ Compressive load) X 100
53
Scapulohumeral Muscle contraction
Component forces compress humeral head into the glenoid | 90% body weight at 90 degrees of elevation
54
Soft Tissue Buttress
Scapulohumeral muscle centers the humeral head in the glenoid
55
Capsular Constraint Mechanism
End range osteokinematic motion will take the slack out of ligament or capsule Direction of force is opposite to anatomical location
56
Tight Anterior Capsule
Posterior humeral head translation at endrange
57
Capsuloligamentous structures
SGHL MGHL IGHL-3 bands (Anterior, Axillary pouch, Posterior) CHL
58
Resists flexion w/ External Rotation
Anterior coracohumeral ligament
59
Resists Flexion w/ internal rotation
Middle posterior capsule
60
Resists Abduction w/ external rotation
Posterior Coracohumeral ligament
61
Resists abduction w/ internal rotation
Inferior posterior capsule
62
Anatomical position primary stabilizer
SGHL and MGHL
63
45 degrees scaption primary stabilizer
MGHL resists anterior translation
64
90 scaption primary stabilizer
IGHL anterior band anterior translation | IGHL posterior band posterior translation

PT 506 Kinesiology (10 decks)

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