Wrist lecture Part 2
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1
what is cocontraction
when flexors and extensors work together
2
how can we functionally assess the wrist
hygeine
sit-stand
tool use - screwdriver, hammer
opening jars and bottles
typing
sit-stand
tool use - screwdriver, hammer
opening jars and bottles
typing
3
how many degrees of flexion and extension do you need to do hygeine
50 degrees flexion
40 degrees extension
40 degrees extension
4
how many degrees of extesnion do you need for holding utensils, opening jar, pouring
35-4-0 degrees extension
5
how many degrees of extension is needed for typing
10 degrees
6
how many degrees of wrist extension is need to push up during sit to stand
50-60 degrees of extension
7
what plane does the wrist typically function in
diagonal
8
what plane does the wrist have the greatest stabilization
diagonal plane
9
what is the thumbs importance in hand function
vital structure
opposition of thumb allows for manipulation of objects
opposition of thumb allows for manipulation of objects
10
what percent of hand function comes from the thumb
40%
11
what are the thumb carpometacarpal motions
CMC flexion
CMC extension
Radial abduction
Palmar abduction
opposition
CMC extension
Radial abduction
Palmar abduction
opposition
12
what position is the thumb in when holding a cup
palmar abduction
13
what type of joint is the thumb CMC joint
saddle joint
14
what are the articulation points of the thumb CMC joint
1st metacarpal
trapezium
trapezium
15
With the increased motion of the thumb, what condition are we concerned about? Why?
Arthritis
16
what are the borders of the anatomical snuffbox
extensor pollicis longus
abductor pollicis longus and extensor pollicis brevis
abductor pollicis longus and extensor pollicis brevis
17
what is the clinical significance of the anatomical snuffbox
scaphoid fracture
18
when there is 1lb of force during pinch what is the lbs of force at the thumb CMC
12 lbs
19
what is the force during strong grip
250lbs at CMC with strong grip
20
long muscles extending to forearm
extrinsic
21
small muscles within the hand
intrinsic
22
how can we functionally assess the thumb
grasping cups
keys
manipulation of objects
grasp and release
thumbs up
keys
manipulation of objects
grasp and release
thumbs up
23
Name some wrist and hand precautions
HTN
COPD
Cancer
Recent injury: fractures, sprains, strains
New Surgical Procedures: tendon repairs, ORIF
wrist fusions
COPD
Cancer
Recent injury: fractures, sprains, strains
New Surgical Procedures: tendon repairs, ORIF
wrist fusions
24
Name some wrist and hand contraindications
unstable fractures
deep vein thrombosis
new surgical procedures: tendon repairs, fracture ORIF
new surgical procedures: tendon repairs, ligament repairs
bone metastases
weightbearing restrictions
severe arthritis
deep vein thrombosis
new surgical procedures: tendon repairs, fracture ORIF
new surgical procedures: tendon repairs, ligament repairs
bone metastases
weightbearing restrictions
severe arthritis
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