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MSK 4 > Sync Exam 1 > Flashcards

Sync Exam 1 Flashcards

1
Q

What are the joints associated with the shoulder complex?

A

AC

SC

GH

Scapulothoracic

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2
Q

What is the resting position (open packed) of the glenohumeral joint?

A

55° abduction

30° horizontal adduction

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3
Q

What is the closed packed position of the glenohumeral joint?

A

Full abduction and full lateral rotation

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4
Q

What is meant by an open packed position?

A

Most play in the joint

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5
Q

What is the capsular pattern of the glenohumeral joint?

A

Lateral rotation

Abduction

Medial rotation

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6
Q

What is a common pathology of the shoulder where the capsule is the culprit?

A

Adhesive capsulitis (frozen shoulder)

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7
Q

What movement is convex on concave in a joint?

A

Opposite directions

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8
Q

What is the movement in the joint of shoulder abduction?

A

Convex on concave (rolls superiorly, glides inferiorly)

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9
Q

What is the movement in the joint of external rotation and extension?

A

Convex on concave (anterior glide, posterior roll)

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10
Q

What is the movement of the shoulder in the joint during internal rotation and flexion?

A

Convex on concave (posterior glide, anterior roll)

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11
Q

What is the resting position of the scapula?

A

Medial border of scapula is 5 cm from vertebrae

Upward rotation 5-10°

Internally rotated 30-45°

Anteriorly tipped 10-20°

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12
Q

What are some things that cause the scapula to not sit normal?

A

Weakness of muscles (serratus anterior)

Shortened muscles (pec minor)

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13
Q

What type of joint is the AC joint?

A

Planar

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14
Q

What type of joint is the SC joint?

A

Saddle

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15
Q

When does the AC joint contribute to movement?

A

At the end of shoulder motion

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16
Q

What direction does the AC joint go in?

A

Any direction

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17
Q

What direction does the SC joint go in?

A

Elevation (convex on concave)

Protract and retract (concave on convex)

18
Q

What does the clavicle do as a whole when you raise your arm?

A

Moves superior

19
Q

What is the ROM of shoulder flexion and abduction?

A

180°
(GH-120°)
(Scapulothroacic-60°)

20
Q

What is the primary muscle activity for shoulder flexion and abduction?

A

Rotator cuff deltoid force couple

Scapulothoracic force couple

21
Q

What do the rotator cuff muscles do to the humeral head?

A

Hold it in the glenoid fossa and pull inferiorly

22
Q

What nerve innervates the levator scapulae and rhomboids?

A

Dorsal scapular nerve

23
Q

What is the action of the levator scapulae and rhomboids on the scapula?

A

Downward rotation

24
Q

What nerve innervates the serratus anterior?

A

Long thoracic nerve

25
Q

What is the action of the upper trap, lower trap, and serratus anterior?

A

Raises the arm (shoulder abduction)

26
Q

What is a primary impingement?

A

Due to anatomy (hooked acromion)

27
Q

What is a secondary impingement injury?

A

Weakness of rotator cuff

Scapula position

28
Q

What movement must occur in the scapula to avoid pinching under the acromion?

A

Upward rotation

29
Q

Why does a rotator cuff tear lead to an impingement?

A

Humerus head is not being pulled down and has increased superior glide

30
Q

What is a common disorder that comes along with adhesive capsulitis?

A

Diabetes

31
Q

What are the stages of adhesive capsulitis?

A

Pre-freezing stage

Freezing stage

Frozen stage

Thawing stage

32
Q

What is the pre-freezing stage?

A

Limited ROM and pain at 0-3 months

33
Q

What is the freezing stage?

A

Severely restricted ROM and pain at 3-9 months

34
Q

What is the frozen stage?

A

Severe stiffness and minimal pain at 9-15 months

35
Q

What is the thawing stage?

A

Improving ROM and minimal pain

36
Q

How does the clavicle glide on the sternum during scapular elevation?

A

Inferiorly

37
Q

A patient has OA and degeneration on their ACJ which causes pain to occur with compressive loads, which position would most likely provoke these symptoms?

A

90° abduction

38
Q

What is affected when someone gets a + sulcus sign (limits inferior translation)?

A

Superior GH ligament

39
Q

What is the best treatment option for someone with adhesive capsulitis?

A

Corticosteroid injection combined with PT

40
Q

What are some tests used to assess shoulder pain?

A

SPADI and DASH (higher score=higher disability)

MSK 4 (24 decks)

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