Shoulder Biomechanics

Question 1

Oestokinematics Of Sternoclavicular Joint

MOVEMENT

Answer 1

Protection/Depression
Elevation/Depression
Rotation

Question 2

Arthokinematics Elevation
Frontal Plane
Anterior -Posterior
SC joint

Answer 2

Convex surface of sternal end of clavicle rolls superiorly and slides inferiorly on cavity of sternum
45 degrees

Question 3

Arthokinematics Depression

Answer 3

Convex surface of sternal rolls inferiorly and slides superiorly on concave surface of sternum
10 degrees of freedom

Question 4

Protraction/Elevation
Horizontal Plane-Vertical axis
How many degrees

Answer 4

15-30degrees

Question 5

Rotation of Clavicle
(Spin on sternal end)
How many degrees ?

Answer 5

Shoulder abduction of Flexion superior aspect of the clavicle posteriorly 20-35 degrees
Spin of its sternal end

Question 6

Movement available at the Scapulothoracic Joint

Answer 6

Elevation/depression
Protraction/retraction
Upward/Downward rotation
Anterior/Posterior tilt

Question 7

Movement on the gh joint

Answer 7

Flexion/extension 
Abduction/adduction
Internal or external rotation in neutral
Or 90 degrees
Can circumduction
Horizontal flexion/extension

Question 8

Abduction of GH Oestokinematics

Answer 8

Frontal Plane

Anterior-Posterior

Question 9

GH Abduction Arthokinematics

Answer 9

Convex head of humerus rolls superiorly and slides inferiorly on the concave Glenoid fossa

Question 10

GH Adduction Oestokinematics

Answer 10

Frontal Plane

Anterior Posterior

Question 11

GH Adduction Arthokinematics

Answer 11

Adduction convex head at humerus rolls inferiorly and slides superiorly on concave glenoid godsay

Question 12

External Rotation Oestokinematics

@0 degrees

Answer 12

Horizontal Plane

Vertical Axis

Question 13

External Rotation 0 degrees

Arthokinematics

Answer 13

Convex humerus rolls posteriorly and slides anteriorly on concave glenoid fossa

Question 14

Internal Rotaton Oestokinematics

0 degree

Answer 14

Horizontal

Vertical

Question 15

Internal Rotation 0 degrees

Arthokinematics

Answer 15

Convex humerus rolls anteriorly and slides posteriorly on concave glenoid fossa

Question 16

Internal/External Rotation
@90 abduction
Oestokinematics

Answer 16

Sagittal Plane

Medial-Lateral

Question 17

Internal/External rotation
90 abduction
Arthokinematics

Answer 17

Primary spin between huneral head and glenoid fossa

Question 18

Flexion/ Extension

Oestokinematics

Answer 18

Sagittal Plane

Medial-Lateral

Question 19

Flexion/Extension
Arthokinematics
On the GH

Answer 19

Primary spin huneral head and glenoid fossa

Question 20

Static Shoulder Stabilisers

Answer 20

Coracohumeral Ligament
Glenohumeral Ligament
Joint Capusle
Glenoid Labrum

Question 21

Dynamic Shoulder Stabilisers

Answer 21

Rotator Cuff
Trapezius, Serratus anterior
Pectoralis Major, anterior deltoid
Short bicep, long tricep

Question 22

Scapulohumeral rhythm

Answer 22

For every 3 degree of abduction
Every 2 occur as the GH
1 degree of upward rotation

Question 23

180degree abduction=

Answer 23

120 Glenohumeral

60 Scapula upward rotation

Question 24

Full abduction requires how much external and posterior ?

Answer 24

45 degrees external rotation GH joint

25 posterior rotation of SC Joint

Question 25

Rotatory Force acts?

Answer 25

Perpendicular

Question 26

Translatory?
Towards joint?
Away from joint?

Answer 26

Parallel
Compression
Distraction

Question 27

Subacromial Pain Impingement

Answer 27

Head rolls superiorly and if doesn’t slide inferiorly

Causes compression

Answer 28

Pos