Wrist and Hand disorders Flashcards
Carpal tunnel syndrome - is what
compression of the median nerve at the carpal tunnel of the wrist due to inflammation of the flexor tendons and/or median nerve
Carpal tunnel syndrome commonly occurs with
rep. gripping
pregnancy
diabetes
RA
de Quarvain’s tenosynovitis - is what
inflammation of extensor pollicis brevis and abductor pollicis longus tendons at first dorsal compartment
de Quarvain’s tenosynovitis - occurs from what
repetitive microtrauma or as a complication of swelling with pregnancy
Most common wrist fracture
Colle’s fracture
Colle’s fracture usually occurs from what
Fall onto outstretched UE
Colle’s fracture will be immobilized for how long
5 to 8 weeks
Colle’s fracture - characteristic ___ deformity results from ___
dinner fork deformity
dorsal or post displacement of distal fragment of radius with a radial shift of wrist and hand
Smith’s fracture - what is it
Distal fragment of radius dislocates in a volar direction causing a characteristic “garden spade” deformity
Most common carpal fracture
Scaphoid
Scaphoid fracture results from
fall onto outstretch UE in a younger person
Scaphoid fracture - complication
High incidence of avascular necrosis of proximal fragment of scaphoid because of poor vascular supply
Scaphoid fracture - immobilized for how long
4-8 weeks
Dupuytren’s contracture is obbserved as
banding on palm and digit flexion contractures - resulting from contracture of palmar fascia that adheres to skin
Dupuytren’s contracture - who does it affect more
men
Dupuytren’s contracture - contracture usually affects the
MCP and PIP joints of the 4th and 5th digits in nondiabetics
3rd and 4th in those with diabetes
Boutonniere deformity - results from what
rupture of central tendinous slip of extensor hood
Boutonniere deformity - observed deformity is what
extension of MCP and DIP with flexion of PIP
Boutonniere deformity usually occurs from
trauma
or in RA with degeneration of central extensor tendon
Swan neck deformity - results from
contracture of intrinsic mm with dorsal subluxation of lateral extensor tendons
Swan neck deformity - observed deformity is what
flexion of MCP and DIP with extension of PIP
Swan neck deformity - commonly occurs from
trauma
with RA following degeneration of lateral extensor tendons
Ape hand deformity - observed as
thenar mm wasting with first digit moving dorsally unitl it is in line with second digit
Ape hand deformity - results from
median nerve dysfunction
Mallet finger is what
rupture or avulsion of extensor tendon at its insertion into distal phalanx of digit
Mallet finger - observed deformity is what
flexion DIP joint
Mallet finger usually occurs from
trauma forcing distal phalanx into flexed position
Gamekeeper’s thumb - is what
a sprain/rupture of ulnar collateral ligament of MCP joint of first digit
Results in medial instability of thumb
Gamekeeper’s thumb - immobilized for how long
6 weeks
Boxer’s fracture is what
Fracture of neck of fifth metacarpal
Boxer’s fracture - casted for how long
2-4 weeks
