Ch 23 The Elbow

Question 1

Radius

Answer 1

thumb side

Question 2

ulna

Answer 2

pinky side

Question 3

ulnar collateral ligament

Answer 3

prevents valgus forces

Question 4

radial collateral ligament

Answer 4

prevents varus forces

Question 5

annular ligament

Answer 5

resists RCL, holds radial head in place

Question 6

biceps brachii

Answer 6

flexion

Question 7

triceps brachii

Answer 7

extension

Question 8

elbow joint

Answer 8

hinge joint allowing extension, flexion, supination and pronation

Question 9

what assists in stability?

Answer 9

capsule and bony structure

Question 10

carrying angle

Answer 10

when palms face forward, females, 10-15. males 5 deg

Question 11

elbow contusion

Answer 11

Mech: direct repetitive blows. S&S: swelling, possible loss of movement. MGMT: RICE, NSAIDS, monitor for infection

Question 12

ulnar collateral ligament injuries

Answer 12

mech: repetitive valgus forces, hyperextension. S&S:pain on inside of elbow, loss of forceful, controlled throwing, numbness/tingling. MGMT: RICE, NSAIDS, strengthening and possible surgery baseball commonly calls “Tommy John” procedure.

Question 13

medial/lateral epicondylitis

Answer 13

Mech for medial: repetitive flexion (golf elbow). Mech for lateral: repetitive extention (tennis elbow). S&S: inflammation, painful gripping/movement. MGMT: modalities, NSAIDS, strengthening.

Question 14

young athlete problems

Answer 14

osteochondritis dissecans, Panner’s disease, Little league elbow

Question 15

osteochondritis dissecans

Answer 15

Joint mice. Mech= unknown, possible repetitive motion. loose bodies in joint. 10-15 years

Question 16

Panner’s disease

Answer 16

form of osteochondritis dissecans occuring in those younger than 10, where avascular necrosis may occur

Question 17

Little league elbow

Answer 17

Mech: repetitive throwing, variety of avulsion/apophyseal damage/stress fracture

Question 18

elbow dislocation

Answer 18

mech: FOOSH, hyperextension, where radius and ulna move anteriorly. S&S deformity, loss of motion, MGMT: immediate referral, extensive rehabilitation.

Question 19

valgus

Answer 19

lateral force inward

Question 20

varus

Answer 20

medial force applied outward

Question 21

the ligament that stabilizes and encircles the head of the radius is the

Answer 21

annular ligament

Question 22

what nerve innervates the main elbow extensors?

Answer 22

radial nerve

Question 23

a trainer applies resistance to an extended wrist while elbow is flexed to 45 deg. What injury is being tested for?

Answer 23

lateral epicondylitis

Question 24

athlete complains of burning and tingling in 4th and 5th fingers. which structure may be damaged?

Answer 24

ulnar nerve

Question 25

most elbow dislocations occur from falling on an outstretched hand. In what direction do the ulna and radius dislocate?

Answer 25

posterior

Question 26

what nerve can become irritated secondary to the cubitus valgus at the elbow

Answer 26

ulnar

Question 27

the motions that occurs at the proximal radioulnar joint are ___

Answer 27

pronation and supination

Question 28

lateral epicondylitis occurs from

Answer 28

repeated extension of wrist