Exam 5: Wrist and Hand Flashcards
The hand is involved in approximately 90% of upper limb function (true/false)
true
Which finger is the most involved in hand function?
a. thumb
b. index finger
c. middle finger
d. little finger
thumb
Which styloid is shorter?
a. radial styloid
b. ulnar styloid
ulnar styloid
Which side has more deviation?
a. radial deviation
b. ulnar deviation
ulnar deviation
Which ligament holds the extensor mechanism at the PIP joint?
a. Oblique retinacular ligament
b. Ulnar collateral ligament
c. Radial collateral ligament
d. Transverse retinacular ligament
Transverse retinacular ligament
The volar plate attaches to the
a. Distal phalanx
b. Proximal phalanx
proximal phalanx
What serves as an attachment for the thenar and hypothenar muscles?
a. Extensor hood
b. Extensor retinaculum
c. Flexor retinaculum
d. ulnar collateral ligament
flexor retinaculum
The flexor retinaculum serves to protect which nerve?
a. Radial nerve
b. Median nerve
c. Ulnar nerve
d. axillary nerve
median nerve
What carpal ligaments provide the majority of wrist stability?
a. Intrinsic ligaments
b. Extrinsic ligaments
c. Collateral ligaments
d. Retinacular ligaments
Extrinsic ligaments
What carpal ligaments serve as a rotation restraint?
a. Intrinsic ligaments
b. Extrinsic ligaments
c. Collateral ligaments
d. Retinacular ligaments
Intrinsic ligaments
The function of the extensor hood is to
a. provide stability for the lumbricals
b. serve as a protection
c. Allow the lumbricals to assist in the flexion of the MP joints
d. assist in finger and wrist extension
Allow the lumbricals to assist in the flexion of the MP joints
The Transverse Carpal Ligament or flexor retinaculum functions to
a. absorb force to the palmar side of the hand
b. Help maintain the transverse carpal arch and protect the median nerve
c. protects the ulnar nerve
d. protect the palmar surface
Help maintain the transverse carpal arch and protect the median nerve
The function of the triangular fibrocartilage complex (TFCC) is to
a. Improve joint congruency
b. Cushion against compressive forces
c. protect the distal radius and ulna
d. a and b
Improve joint congruency
Cushion against compressive forces
A condition in which ordinarily nonpainful stimulus evokes pain
a. Allodynia
b. Hyeralgesia
c. Hyperesthesis
d. Hyperpathia
Allodynia
Excessive sensitivity to pain describes
a. Allodynia
b. Hyperalgesia
c. Hyperesthesia
d. Hyperpathia
Hyperalgesia
Unusual increased or altered sensitivity to sensory stimuli
a. Allodynia
b. Hyperalgesia
c. Hyperesthesia
d. Hyperpathia
Hyperesthesia
Increased reaction to a stimulus, especially a repetitive stimuli
a. Allodynia
b. Hyperalgesia
c. Hyperesthesia
d. Hyperpathia
Hyperpathia
At what stage of CRPS is there marked wasting of tissue and it may become irreversible?
a. Stage I
b. Stage II
c. Stage III
Stage III
At what stage of CRPS does muscle wasting begin and this stage will last for 3-6 months?
a. Stage I
b. Stage II
c. Stage III
Stage II
What is the function of the pulley system?
to prevent bowstringing
What transmits a load from the hand and forearm?
Triangular Fibrocartilage Complex (TFCC)
Which nerve radiates on the dorsal surface from the thumb to the middle of the ring finger?
a. median nerve
b. radial nerve
c. ulnar nerve
d. axillary nerve
radial nerve
Which nerve radiates on the dorsal and palmar surface in the pinky and half of the ring finger?
a. radial nerve
b. median nerve
c. ulnar nerve
d. digital nerve
ulnar nerve
Which nerve radiates on the palmar side from the part of the thumb to the lateral side of the ring finger?
a. radial nerve
b. ulnar nerve
c. median nerve
d. axillary nerve
median nerve
What motion is limited by the interosseous membrane and the bony impaction between the notch of the radius and the ulnar styloid process?
a. pronation
b. supination
c. flexion
d. extension
supination
What motion is limited by bony impaction between the radius and ulna?
a. pronation
b. supination
c. flexion
d. extension
pronation
What motion is limited by impact of the scaphoid onto the radial styloid and the UCL?
a. ulnar deviation
b. radial deviation
c. pronation
d. supination
radial deviation
The functional arches of the hand allow for the fingers/thumb to
hold objects in the hand
Which functions to maintain the constant relationship between the tension and joint axis to provide for max joint motion within the limits of the muscle excursion?
a. pulley system
b. extensor mechanism
c. flexor retinaculum
d. TFCC
pulley system
What two pulleys are critical for creating composite flexion?
a. A1 and A2
b. A2 and A3
c. A2 and A4
d. A1 and A3
A2 and A4
A pain syndrome triggered by a noxious event that is not limited to a single peripheral nerve
CRPS Type I: RSD
What clinical characteristics can be seen with CRPS?
pain allodynia hyperalgesia hyperesthsia hyperpathia
What SNS changes are common with CRPS?
swelling
abnormal color or temp
sweating
trophic changes
At what stage of CRPS is pain limited to the site of the injury?
a. stage I
b. stage II
c. stage III
stage I
At this stage of CRPS there is increased sensitivity of skin to touch and light pressure
a. stage I
b. stage II
c. stage III
stage I
Patient is experiencing muscle cramps, stiffness and limited mobility, sensitive to touch, skin is warm, red and dry. What stage of CRPS?
a. stage III
b. stage II
c. stage I
stage I
Patient presents with pain that is diffuse, swelling has become hard, muscle wasting is seen. What stage of CRPS?
a. stage III
b. stage II
c. stage I
stage II
Patient presents with marked wasting of tissue that may be irreversible. What stage of CRPS?
a. stage III
b. stage II
c. stage I
stage III
RSD is more (regional/focused) and Causalgia is more (regional/focused)
RSD regional
Causalgia focused
This type of treatment may provide a permanent cure or partial remission and blocks the SNS
sympathetic block
A sympathetic block will provide
prognostic info about potential merits of other treatments
Sympathectomy is for (acute/chronic) patients with intractable sympathetic (intermittent/maintained) pain
and have responded _ to _
chronic intractable sympathetic maintained pain and have responded favorably to a series of blocks
This type of treatment for CPRS is an implantation of an electrode using low intensity impulses along the spinal cord
spinal cord stimulation
with CRPS patients it is important to immobilize (true/false)
false
do NOT immobilize
Prognosis of CRPS is _ for stage I or intervention has begun 3-6 months after onset
good
Prognosis of CRPS is _ for stage II or intervention has begun 6-12 months after onset
variable
Prognosis of CRPS is _ for stage III or intervention has begun 1 year after onset
poor
Patient presents with pain over the radial styloid process with gripping activities, what is your initial hypothesis?
a. Capral Tunnel
b. DeQuervain Syndrome
c. Ulnar Nerve compression
d. Dupuytren
DeQuervain Syndrome
Patient reports an insidious onset of numbness and tingling in the first 3 fingers, and possible report of worse pain at night, what is your initial hypothesis?
a. Capral Tunnel
b. DeQuervain Syndrome
c. Ulnar Nerve compression
d. Dupuytren
Capral Tunnel Syndrome
Patient reports of paresthesias over dorsal aspect of ulnar border of hand and finger 4-5, what is your initial hypothesis?
a. Capral Tunnel
b. DeQuervain Syndrome
c. Ulnar Nerve compression at canal of Guyon
d. Dupuytren
Ulnar Nerve Compression at canal of Guyon
Patient reports inability to extend MCP or IP joint, what is your initial hypothesis?
a. Capral Tunnel
b. DeQuervain Syndrome
c. Ulnar Nerve compression
d. Dupuytren or trigger finger
Dupuytren or trigger finger
Patient reports of falling on hand with wrist hyperextended, reports of pain with loading of wrist, what is your initial hypothesis?
a. Carpal Tunnel
b. Scaphoid fracture or carpal instability
c. radial fracture
d. ulnar nerve compression
scaphoid fracture or carpal instability
Trigger finger is a _ of the _ tendon sheath
thickening
flexor tendon
What can result in trigger finger?
repetitive trauma