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Orthopedic > shoulder > Flashcards

shoulder Flashcards

0
Q

what does the GH joint count on for its stability, support, and integrity?

A

muscles and ligaments

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1
Q

what kind of joint is the glenohumeral joint?

A

multiaxial, ball in socket, synovial joint

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2
Q

the labrum deepens the glenoid cavity of the scapula by what percent?

A

50%

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3
Q

what is the closed position of the GH Jt?

A

full abduction and external rotation

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4
Q

what are the primary ligaments of the GH joint?

A

superior, middle, and inferior glenohumeral ligament

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5
Q

which primary ligament of the GH joint is the most important of the three?

A

inferior glenohumeral ligament

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6
Q

what is the capsule pattern of the GH joint?

A

lateral rotation>abduction>medial rotation

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7
Q

what bones make up the acromioclavicuar joint?

A

acromion process of the scapula and the lateral end of the clavicle

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8
Q

how many degrees of freedom does the AC joint have?

A

three degrees

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9
Q

what ligament provides the primary support to the AC joint?

A

coracoclavicular ligament

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10
Q

what two ligaments make up the coraclavicular ligament?

A

conoid and the trapezoid

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11
Q

what ligament has to be torn for there to be a step deformity?

A

coracoclavicular ligament

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12
Q

what ligaments are a part of the AC joint?

A

the acromionclavicular and the coracoclavicular ligament

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13
Q

what are the ligaments of the sternoclavicular joint?

A

anterior and posterior sternoclavicular ligament
interclavicular ligament
costoclavicular ligament

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14
Q

what is the main ligament maintaining the integrity of the sternoclavicular joint?

A

costoclavicular ligament

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15
Q

true or false: the scapulothoracic joint is not a true joint?

A

true

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16
Q

what level of the spine does the inferior angle of the scapula hit?

A

spinous process of T7-T9

17
Q

what is tendinosis?

A

degeneration of the tendon

18
Q

what muscles will be weak with an injury to the radial nerve?

A

triceps, wrist extensors, finger extensors

19
Q

what is a another name for a subcoracoid dislocation?

A

an anterior dislocation

20
Q

what are the two common causes of scapular winging?

A

long thoracic nerve palsy, and spinal accessory nerve

21
Q

what is sprengel’s deformity?

A

a developmental condition leading to a high or undescended scapula

22
Q

what is the m/c congenital deformity of the shoulder complex?

A

sprengel’s deformity

23
Q

what two muscles are involved in the force couple to stabilize lateral rotation of the scapula?

A

trapezius and serratus anterior

24
Q

during what degrees of the painful arc test does the patient experience pain?

A

60-120 degrees-glenohumeral painful arc

170-180 degrees- acromionclavicular painful arc

25
Q

is there a 2:1 ratio for the scapulohumerl rhythm during the first phase?

A

no

26
Q

what is reverse scapulohumerl rhythm?

A

when the scapula moves more than the humerus

27
Q

how much lateral rotation happens at the GH joint?

A

80-90 degrees

28
Q

how many degrees of medial rotation is there in the GH joint?

A

60-100 degrees

29
Q

how much extension is there in the GH joint?

A

50-60 degrees

30
Q

how much adduction is there at the GH joint

A

50-75 degrees

31
Q

what test is the right arm in lateral rotation, flexion, and abduction and the left arm is in medial rotation, extension, and adduction?

A

apley’s scratch test

32
Q

what bursitis may limit lateral rotation?

A

subcoracoid bursitis

33
Q

what bursitis limits full abduction?

A

subacromial bursitis

34
Q

what is a popeye sign?

A

rupture of the long head of the biceps brachii

35
Q

where can pain refer from to your shoulder?

A

cervical spine, elbow, lungs, heart, diaphragm, gallbladder, and spleen

36
Q

what is the most commonly injured nerve in the shoulder?

A

axillary

37
Q

where is the suprascapular nerve most commonly injured?

A

where it passes through suprascapular notch or as it winds around the spine of the scapula under the spinoglenoid ligament

38
Q

which shoulder does the lungs, and gallbladder refer to?

A

the right shoulder

39
Q

which shoulder does the diaphragm, spleen, and heart refer to?

A

the left shoulder and the heart does left shoulder and elbow

40
Q

what is the most common injury for a dislocation at the GH joint?

A

anterior dislocation

Orthopedic (8 decks)

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