Wrist Hand Lab Flashcards
how many bones in the hand
29
what are the 4 powergrips
hook
cylindrical
spherical
fist
what are the 3 precision grips
tip pinch
lateral/key pinch
chuck or three fingered pinch
T or F: Even with injuries a bell shaped curve should still be evident on grip dynomometer
T
how much discrepancy is normal side to side on the grip dyno
10%
how should we utilize the grip dynamometer when testing different patients
utilize in the same position theyd normally do their activity that they need to return to
An anterior glide (pushing towards pronation) at the DRUJ improves what
pronation
A posterior glide of the DRUJ (pushing towards supination) improves what
Supination
what is the loose packed position of the radio-carpal joint
Neutral with slight ulnar deviation
Which way do we glide to improve wrist ext at the radio-carpal joint
Anterior (towards palm)
Which way do we glide at the radio-carpal joint to improve flexion
Posterior (towards the back of hand)
An ulnar/medial glide of the Radio-carpal joint improves what
In what position should we apply it
Radial deviation
start in slight radial deviation before gliding ulnarly
A radial/lateral glide of the Radio-carpal joint improves what motion
in what position do we apply it
Ulnar deviation
start in slight ulnar deviation before gliding radially
Midcarpal joint play:
also opposite just like radio-carpal!
to improve thumb CMC flexion we need to glide _______
medially (same)
to improve thumb CMC ext we need to glide _____
radially (same)
to improve thumb CMC abduction, we need to glide ______
posteriorly (opposite)
to improve thumb adduction we need to glide
anteriorly (Opposite)
what carpal connects to the thumb CMC?
trapezium
All finger PIP/DIP glides are ______
concave on convex (same)
note: remember that abduction/adduction depends on reference to the 3rd ray
How do you perform the test for gamekeepers thumb (thumb ulnar collateral ligament instability)
Flex MCP to 30 and apply a valgus stress at the MCP
testing for excess abduction
Pt says “I jammed my finger”
Perform ligamentous instability test for fingers
both varus and valgus stress at each DIP/PIP joint looking for excess laxity
How to perform Watson Scaphoid shift test?
Slight pronation
Grip wrist with thumb over scaphoid
Start in Ulnar deviation w/ extension and go around the world (circular motion)
Positive test = sublux or clunk felt w/ pain
What special test is for a tear of the scapho-lunate ligament
Watson Scaphoid Shift test