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Flashcards in Wrist Deck (38):
1

strength of skeleton and lig/muscles

skel: weak
lig/musc: moderate

2

prox row of carpels left to right

-naviuclar
-lunate
-triquetrum/triquetral
-pisiform

3

distal row of carpel left to right

-trapezium
-trapezoid
-capitate
-hamate

4

jnts of wrist (4)

-radial carpel: most lfex here
-mid carpel: most exten here (btwn 2 rows)
-carpel-metacarpel
-radial ulnar: not in wrist

5

ligs of wrist

-transverse carpel lig (palmar side)
-interosseous lig: btwn carpels
-radial collateral lig: radius -> navicular
-ulnar collateral: ulna -> pisiform/triquetral

6

mechanism of navicular fx

hyperextension

7

what is important w/ naviuclar fx

-blood supply
-will not heal and bone will die if do not have blood supply to prox/distal portion

8

what is preisers disease

aceptic necrosis to prox protion of navicular bone due to fracture

9

signs/symptoms of presiers diease

-no swell
-pain on radial devation
-pain in snuff box

10

mech of colles fx

fall on outstretch arm/ hyperextension

11

signs/symptoms of colles fx (4)

-distal end of radius moves distally
-finger/hand move limited
-difficult radial deviation/abduct
-posterior displacement of hand and wrist

12

mech of smiths fx

hyperflex = rare

13

what way does the radius displace in smiths fx

ant/volar/palmar

14

what borders the carpel tunnel

-post: carpel bones
-ant: transverse carpel lig

15

what does the carpel tunnel contain

-median nerve
-blood supply
-bursa
-finger flexor tendons

16

mechnism of carpel tunnel (4)

-overuse
-trauma
-swelling of tendons/synovial sheaths
-dislocation of lunate into tunnel

17

waht does carpel tunnel result in (3)

-entrapment of median nerve=
-burn/tingle/numbness
-thenar eminence atrophy

18

what does phalans test test for?

carpel tunnel

19

how do you perform the phalans test?

-flex both wrists
-place back to back (hold)
-pain = pos = pressure on nerve

20

mechanism of dislocation of lunate

fall on outstretched hand/hyper extension

21

what does lunate dislocation result in (4)

-displace bone to palmar side
-lodge under capitate
-displace into carel tunnel = obstruct the structures in this
-ant blood supply gets cut off

22

what can lunate dislocation cause?

kienbocks disease = aceptic necrosis from DISLOCATION
-carpel tunnel

23

what doe sthe murphys test test for?

lunate dislocation

24

how do you perform the murphy test?

make fist
pos = 3rd met head lines up with 2nd/4th met

25

mechanism of tunnel of guyan syndrome
-what does is it result in?

chronic over use
-entrapment of ulnar nerve (like carpel tunnel)

26

where is the tunnel of guyan

-btwn hook of hamate and pisiform
-contain ulnar nerve

27

mechanism of dequervians disease

overuse of thumb/wrist

28

two tendons involved in deque disease

-abductor pollicus longus
-extensor pollicus brevis

29

anatomical results of deque disease

-tendosynovitis (synovial inflammation)
-stenosing of tunnel (narrowing)

30

what does the finkelstein test test for?

dequervians disease

31

how do you perform finkelstein test?

-make fist w/ thumb inside
-ulnar deviate (adduct)
-pos = pain

32

for navicular fx how long should you wait to re xray if there is no response?

2-3 weeks

33

how long should you immobilize for presiers disease

4-6 months

34

definition of aceptic and necrosis

-aceptic: w/o infection
-necrosis: death to bone/tissue surrounded by healthy tissue

35

where does a navicular fx occur?

waist of the navicular bone

36

where does a colles and smith fracture occur?

distal end of the radius
-btwn shaft and styloid process

37

what does the tinel sign test for?

tunnel of guyan syndrome

38

how do you perform the tinel sign?

-tap on transverse carpal lig
-pos = numbness/tingling intesifys