wrist and hand

Question 1

There are ___ named inter carpal ligaments

Answer 1

26

Question 2

The hand accounts for ___ % of hand function

Answer 2

90%

Question 3

thumb is involved in __ to __ % of hand function

Answer 3

40-50

Question 4

the second digit is involved in __ % of hand function

Answer 4

20%

Question 5

The third digit is __ % of hand function and is the strongest it is imports for power and precision

Answer 5

20%

Question 6

what type of joint is the radio-ulnar joint

Answer 6

pivot

Question 7

the rounded head of the ulnar head contacts both the ulnar notch of the radius ______ and the TFCC _____

Answer 7

Laterally & Distally

Question 8

what is TFCC?

Answer 8

Triangular Fibrocartilage Complex

( A double pivot joint that unites the distal radius and ulna AND articular disc

Question 9

Explain why ulnar deviation is more than radial deviation

Answer 9

the ulnar styloid process is approx. one- half inch shorter than the radial styloid process - resulting in more deviation
ROM 30 /20

Question 10

What is an AKA for Colle’s Fracture

Answer 10

Dinner Fork Fracture

Question 11

T?F with a Colle’s Fracture , fracture of the radius within 20- 30 mm of the wrist joint with anterior angulation of the distal fragment

Answer 11

False

it is Posterior angulation

Question 12

Colle’s = Flexion fracture
Smith’s= extension fracture
this correct?

Answer 12

nope

opposite

Question 13

What is Garden Spade Deformity known as?

Answer 13

Smith fracture

Question 14

Describe what happens in a Smith’s fracture

Answer 14

fracture of the radius within 20-30 mm of the wrist joint with anterior angulation of the distal fragment

Question 15

T/F
In the TFCC, the fibrocartilage disc is between the lateral distal row and the distal ulna within the medial aspect of the wrist

Answer 15

False

Medial proximal row

Question 16

what is the primary function of the TFCC

Answer 16

to improve joint congruency and to cushion against compressive forces

Question 17

TFCC transmits about __% of the axial load from the hand to the forearm

Answer 17

20

Question 18

What is the wrist composed of

Answer 18

• distal radius
• distal ulna
• 8 carpals
• 5 metacarpals

Question 19

name the carpals located in the proximal row

Answer 19

scaphoid(navicular), lunate, triquetrium, pisiform

Question 20

name the carpals located in the distal row

Answer 20

trapezium, trapezoid, capitate and hamate

Question 21

T/F the scaphoid is the most commonly fractured carpal bone

Answer 21

True - also known as navicular

Question 22

T/F Scaphoid is the largest of all carpal bones

Answer 22

False
Captitate is the largest of ALL carpals
Scaphoid is the largest in the proximal row

Question 23

which carpal is the second most commonly fractured and subluxated

Answer 23

Lunate

Question 24

Lunate, Capitate and the base of the 3rd metacarpal is covered by which tendon?

Answer 24

extensor carpi radialis tendon ( inserts into the base of the 3rd metacarpal)

Question 25

where is the mid carpal joint located

Answer 25

between the two rows of carpals

Question 26

T/F the proximal row of the carpals is concave laterally and convex medially

Answer 26

False

convex laterally & concave medially

Question 27

What is considered the most important joint in thumb

Answer 27

first carpometacarpal joint

Question 28

name the ROM with the First Carpometacarpal joint

Answer 28

felsion/ extension
adduction/ abduction
opposition

Question 29

T/F

Bennett’s Fracture occurs at the base of the second metacarpal neck with dorsal and radial displacement of the shaft

Answer 29

False

it occurs at the base of the fifirst metacarpal

Question 30

What type go joint is the metacarpophalangeal joint of the thumb

Answer 30

A hinge joint

Question 31

Name the metacarpals that are involved in a bar room fracture… what type of displacement

Answer 31

Fracture of the fourth and fifth metacarpal neck

with anterior displacement

Question 32

Which metacarpals are involved with a boxer’s fracture

Answer 32

fracture of the second and third metacarpal neck with anterior displacement

Question 33

T/F the PIP joint is considered less stable than the DIP joint

Answer 33

False that would be the DIP with less stability allowing some hyperextension

Question 34

T/ F Herbedan’s Nodes is found in more than one digit

Answer 34

False found in the fingers but not the thumb

Question 35

T/f Nodules are painless in Heberdan’s Nodes

Answer 35

True

Question 36

What is the MOI for Swan’s deformity

Answer 36

Rhuematoid arthritis

Question 37

What occurs in Swan’s deformity

Answer 37

PIP joint deforms into hyperextension and DIP joint is flexed

Question 38

Boutonniere Deformity is the central slip of the ____ ____ _____ tendon is ____ from the insertion in the ___ of the middle phalanx, the ____ is flexed and the ___ is extended

Answer 38

extensor digitorium communis tendon 
avulsed 
base 
PIP
DIP