Shoulder Complex

Question 1

mobility and stability in shoulder girlde

Answer 1

is susceptible to dysfunction and instability due to competing mobility and stability demands

Question 2

elevation and depression with sternoclavicular joint

Answer 2

Convex on concave
Elevation
-Superior roll, inferior glide
Depression
-Inferior roll, superior glide

Question 3

protraction and retraction with sternoclavicular joint

Answer 3

Concave Convex
Protraction
-Anterior roll and glide
Retraction
-Posterior roll and glide

Question 4

ant and post rotation sternoclavicular

Answer 4

Posterior rotation
- Inferior surface turns anteriorly
- Also described as backward rotation
Anterior rotation
- Inferior surface returns to inferior position
- Minimal motion from neutral

Question 5

Closed packed sternoclavicular

Answer 5

full posterior rotation

Question 6

AC joint fx

Answer 6

allow scapula to rotate

Question 7

osteokinematics of AC

Answer 7

IR/ER
ant tilt post tilt
upward downward rotaiton

Question 8

ant/post tilt

Answer 8

maintains contact of scap on curved thorax during elevation and depression

Question 9

upward downward rotation

Answer 9

positioning glenoid in optimal position

Question 10

AC closed packed

Answer 10

full upward rotation

Question 11

AC joint clinical for sports

Answer 11

commonly injured due to sloped nature

Question 12

Scapulothoracic is dependent on which joints

Answer 12

depends on the integrity of the SC and AC joint

Question 13

scapulothoracic joint osteokinematics

Answer 13

Elevation/depression
protraction/retraction
upward/downward rotation’

anterior/posterior tilt
internal/external rotation

Question 14

GH angle of inclination

Answer 14

130 to 150 off frontal plane

Head to neck angle

Question 15

GH angle of torsion

Answer 15

30 posterior off transverse plane
head twist angle
Retroversion

Question 16

retroversion GH

Answer 16

posterior orientation of humeral head with regard to condyles

Question 17

increased retroversion can lead to what

Answer 17

increase ER ROM and reduced IR ROM

Question 18

Glenoid labrum

Answer 18

enhances concavity and increases articular surface

Attachment of GH ligs and tendon of long head biceps

Question 19

joint capsule GH

Answer 19

significant lax
thicker external ligs
inferior portion is slack in AD

Question 20

tight posterior GH capsule

Answer 20

leads to shoulder impingement

can lead to decreased subacromial space

Question 21

Sup GH lig

Answer 21

limit ER and ant inf translation

slack when slight AB

Question 22

Inf GH lig

Answer 22

primary active after 45 AB

AB it will resist inf ant translation

AB lat rotation it will resist anterior translation

AB with medial will resis post translation

Question 23

Coracohumeral lig

Answer 23

limit inf translation and ER

Question 24

rotator cuff main fx

Answer 24

protects and actively stabilizes

Question 25

2 areas not reinforced by rotator

Answer 25

inferior and region between sub scap and supraspinatus

Question 26

GH closed packed

Answer 26

90 AB and full ER or full AB and ER

Question 27

capsular pattern GH

Answer 27

ER>AB>IR

Question 28

clavicle during GH AB

Answer 28

clavicle retracts

Question 29

shoulder girdle posture ideal

Answer 29

slightly elevated and retracted scap

results Glenoid fossa slight upward

Question 30

gravity on scapulothoracic posture

Answer 30

results in depressed, protracted and excessively downwardly rotated

Question 31

rounded shoulder predisposes you to what

Answer 31

impingement

Question 32

Fx of rhomboids and lower trap

Answer 32

similar action but antagonize one another resulting in pure retraction

Question 33

tear of Deltoid vs supraspinatus

Answer 33

with paralysis of delt
- still have AB with supra but less torque
supraspinatus paralysis
- full AB hard

Question 34

force couples for upward rotation

Answer 34

serratus ant, upper trap and lower trap

Question 35

scapular dyskinesis

Answer 35

abnormal position or mvmt of scap