radioular, wrist, and digits Flashcards
what is the function of the triangular fibrocartilage complex
- help distribute force from hand to radius and ulna
- greater range of motion for ulnar deviation
what is the function of the ulnar collateral lig of the wrist
limit wrist abd
what is the function of the radial collateral lig of the wrist
limit amount of add
what is the function of palmar radiocarpal lig
limit extension
what is the function of dorsal radiocarpal lig
limit flexion
what is the function of the thick palmar carpal lig
reinforce MP and IP joints
what is the function of the ulnar and radial collateral lig of digits
strength on medial and lateral side fo digits
what is the function of the deep transverse metacarpal lig
kee heads of metacarpals from being mobile
what are the symptoms of a FOOSH wrist fracture
pain in snuffbox or bleeding from deep branch of radial artery
where is the most common site for a FOOSH wrist fracture
scaphoid
what are the symptoms of a colles fracture
- pain/swelling above wrist
- inability to hold or light objects w/ sig weight
dinner fork appearance
wrist moved posteriorly
signs/symptoms of radial nerve lesion
- drop wrist
- loss of sensation to dorsom of hand on radial side
what is tenosynovitis
inflammation/irritation of synovial sheath surrounding tendons
what is dequervians disease
- swelling of 1st dorsal extensor compartment
- over use injury
what is the test for de quervians disease
finkelstein test
-flex thumb and ulnar deviate
what nerve is entraped during carpel tunnel syndrome
median nerve
sensory symptoms of carpel tunnel syndrome
pain usually on palmar surface of 1st 3.5 digits
motor symptom for carpel tunnel syndrome
weak or total loss of thumb opposition
-ape hand: hyper add and extended thumb at MP joint
what nerve is entraped in pronator teres syndrome
proximal median nerve lesion
what are added motor symptoms to pronator teres syndrome
- wrist flexion and radial deviation weakened
- papel hand
- inability to make fist
- difficult to make precision grip
what nerve is entrapped during guyons tunnel syndrome
distal ulnar nerve lesion
what are senesory symptoms of guyons tunnel syndrome
parathesia along ulnar side on palmar and dorsal surfaces
what are motor symptoms of guyons tunnel syndrome
- thumb in hyper abd position
- cant abd or add MP joints
- cant make fist b/c of difficulty MP joints
what nerve is entrapped during cubital tunnel syndrome
proximal ulnar nerve lesion
what are the symptoms of cubital tunnel syndrome
- all symptoms of distal ulnar nerve lesion
- flexion and ulnar deviation of wrist are weak
what is mallet finger?
what structure is damaged?
- cant extend DIP
- lateral slip
what is boutonnieres deformity?
what structure is damaged?
- PIP flexed and DIP extended
- central band
what is swan neck deformity?
what structure is damaged?
- DIP is flexed and PIP is hyper exnted
- inflammation at PIP
what is stenosing tenosynovitis?
what structure is damaged?
- digit in flexed position
- swelling of sheath around long common digital flexor and ligaments aroudn sheath
