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The elbow > Elbow > Flashcards

Elbow Flashcards

1
Q

What joint of the humerus aligns with the head of the radius

A

Capitulum

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2
Q

What part of the humers aligns with the ulna

A

Trochlea

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3
Q

How man humeral fossae name them

A

2 Fossae

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4
Q

How many recesses (jct btwn 2 bones

A

4 Recesses. Key point-2 bones equal one joing and 1 joint equals 1 recess or joint space

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5
Q

Image of humeral fossae

A

fat pads not displayed

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6
Q

Image of olecranon fossa LAX

A

Note humeral troch

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7
Q

Reivew of the 4 elbow recess

A

a jct bwtween 2 bones

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8
Q

Image lateral and annular recess

A

radio capitellar joing

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9
Q

Image of medial recess 3

A

Humero ulnar joint anterior

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10
Q

image of posterior recess

A

humer ulnar joint posterior

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11
Q

Name the 4 muscles orginating from the common extensor tendon Lateral compatment

A

ECRB ED EDM ECU

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12
Q

Image of Extnsor digiti minimi

A

Its relationship with ED

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13
Q

True or False Does the anconeous orginat on the common extensor tendon

A

FALSE

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14
Q

What lies deep to the commone extensor tendon

A

The Radial collateral ligament RCL. Common extensor tendon takes up 60% and the other 40% is RCL at the lateal epicondyle

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15
Q

Name the common flexor tendons

A

FCU FDS FCR

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16
Q

True or False the pronator tere orginates from the common flexor tendon

A

False orignates just proximal to the common flexor or medial epicondyle

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17
Q

Anterior band of the UCL has a normal gap of and an abnormal gap of what with valgus stress

A

normal is less 2mm and abnormal is greater than 2mm

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18
Q

What are muscles that do not orginate at the common extensor or flexor bu provide moement of the elbow

A

Biceps brachii flex Brachialis flexor of forearm Brachioradialis flexes forearm Supinator supinate forearm Triceps brachii extensor of forearm

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19
Q

Image lateral approach to the distal biceps tendon

A

must supinate hand

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20
Q

Image injection set up for lateral approach

A

probe in plane and short axis

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21
Q

Image of distal bicep dorsal approach

A

Hand in pronation

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22
Q

What are the nerves at the anterior elbow

A

radial posterior interosseous median and ulnar

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23
Q

Image of anterior pyramid

A

radial n lateralbrachial n medial

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24
Q

Location of split from the radial nerve where does the cutaneous sensor and posterior interosseous go

A

The PIN splits laterally and cutaneous sensor splits medially

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25
Q

Image of the PIN

A

Note bony landmark

26
Q

Image of PIN and compression at radial head what is this called

A

Radial tunnel syndrome and anterior forearm pain

27
Q

Image of the Ulnar Nerve What is the gap you must do

A

Probe position in SAX on the Olecranon process and Medial epicondlyle Sometime you do not see the starry night of the ulnar nerve secondary to the medial triceps the reslin is the retinaculum

28
Q

Ulnar nerve subluxation over

A

medial epicondyle but also in sever cases the medial tricep can also sublux

29
Q

What is cubital tunnel syndrome

A

Ulnar ner entrapment 3 cm distal from the ulnar grove as the never passes under the roof of the cubital tunnel. The roof is a membrane called Osbornes fascia or osbornes ligament

30
Q

Image of mechanism of ulnar nerve entrapment or compression

A

remember osbornes fascia ligament with flexion

31
Q

Eval nerve proximal to ulnar grove

A

Look for stenotic dilation of ulnar nerve

32
Q

What is the Struthers ligament?

A

located 8 cm proximal to ulnar grove and can cause ulnar nerve entrapment

33
Q

Where is the bicipito radial bursa and how large is it

A

distal bicep tendon and radial tuberosity 2.4 to 3.9 cm

34
Q

Image of bicipito radial bursa

A

a serous bursa

35
Q

Why a biciptal complete tear may not retract from the radial tuberosity

A

Bicipital aponeurosis aka lacertus fibrosus

36
Q

Image of a subcutaneous Olecranon bursa

A

Not visible with normal bursa

37
Q

What are 5 causes of bursitis at the elbow

A

Trauma infection gout ra oa

38
Q

What does the word enthesis mean

A

insertion of tendons and tendon attachments

39
Q

Image of tendon footprint

A

Unirom linear anechoic footprint

40
Q

What does enthesitis mean

A

insertional pathology and infammation at insertion.

41
Q

What is the difference between enthesophyte and osteophyte

A

growing into the bone

42
Q

What is the greek word for Psoriasis

A

Itch look for enthesophytes

43
Q

Image of common extensor tear

A

distinct fiber interruption

44
Q

The UCL is referred to what is on the exam Joint space opening of what is a partial thickness tear and greater than what is a full thickness tear

A

medial collateral ligament

45
Q

What is the insertion of the UCL

A

Sublime tubercle of Ulna

46
Q

What are the lanmarks for the triceps tendon

A

Humeral trochhlea and distal ulnar olecranon

47
Q

Image of fx to coronoid process

A

CP on the ulna

48
Q

Image erosion at the annular head of the radius

A

Idnetify erosions

49
Q

Image of erosions at capitellum

A

both are humeral landmarks

50
Q

Image of fluid at recess

A

annular and coronoid recess or fossa

51
Q

Image of olecranon recess

A

check for fluid

52
Q

What is cat scratch fever

A

evaluate joint recesses for synovial hypertrophy enlargement of lymph nodes cause I 5 types of infection

53
Q

What is RA nodules at the elbow

A

firm under skin and close to joints affected by RA

54
Q

Loose bodies in the elbow joint what are they

A

cartilage or cartilage and bone resulting from any process that leads to disruption of the articular surface

55
Q

Images of loose bodies in elbow joint

A

Presence of loose bodies in elbow joint

56
Q

Image of loose bodies in the medial and lateral recess

A

Humer Ulnar joint and radio capitellar joint

57
Q

What is Panners Disease

A

Osteochondrosis of the capitellum

58
Q

Tophaceous deposits at the elbow mimic what

A

Olecranon bursal effusion with observation

59
Q

Image of double contour sign

A

Not along the cartilage interface

60
Q

Image of Lymph Nodes and Lipoma What is one difference

A

Wee defined border

61
Q

Image of a Schwannoma

A

Often hypoechoic with posterior acoustic enhancement

The elbow (2 decks)

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