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Orthopedic > elbow > Flashcards

elbow Flashcards

0
Q

what is the capsular pattern of the elbow?

A

flexion>extension

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1
Q

What joints is the elbow articulation made up of?

A

ulnohumeral joint and the radiohumeral joint

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2
Q

what is the close packed position of the elbow?

A

extension and forearm supination

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3
Q

what does the interosseous membrane prevent?

A

proximal displacement of the radius on the ulna

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4
Q

what movements does the oblique cord prevent?

A

prevents pulling movements of the radius on ulna

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5
Q

what is the normal carrying angle in males?

A

5-10 degrees

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6
Q

what is the normal carrying angle in females?

A

10-15 degrees

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7
Q

what is a gun stuck deformity?

A

15 degrees of medial deviation-cubitus varus

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8
Q

how much elbow flexion is there at the elbow?

A

140-150 degrees

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9
Q

how much supination is there at the elbow?

A

90 degrees

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10
Q

what is the capsule pattern of the elbow?

A

flexion>extension

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11
Q

what movement is weak with a median nerve injury?

A

pronation

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12
Q

what movement is weak with a ulnar nerve injury?

A

wrist flexion

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13
Q

what movement is weak with a radial nerve injury?

A

loss of supination

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14
Q

what is a positive for the pinch grip test?

A

pulp to pulp pinch of the index finger and thumb

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15
Q

where can the median nerve be compressed?

A

ligament of struthers
between two heads of pronation teres
under the flexor retinaculum

16
Q

where is the ulnar nerve compressed?

A

cubital tunnel
between two heads of the flexor Capri ulnaris
guyons canal

17
Q

when are symptoms of an ulnar nerve injury most likely to occur?

A

when the elbow is flexed

18
Q

where can the radial nerve be compressed or injured?

A

fracture of the shaft of the humerus in radial groove

bwt the two heads of supination in the arcade of frohse

Orthopedic (8 decks)

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