Carpal Tunnel Syndrome
Physical findings
Wasting
thenars, sometimes only APB
Sensory loss
'palmar triangle' and sparing reasons - not served by PCBMN or PCMBN deep to retinaculum
Tinel's sign
Mark carpal tunnel area
Used middle / IF-MF / tendon tapper to tap over the area
elicit paresthesiae / electric current
sometimes it is proximal to carpal tunnel
Durkan's test
Most sensitive (according to McRae)
Phalen's test
2 ways to do it
do it first before reverse Phalen'sensitive
a timed test may be helpful
Reverse Phalen's test
APB testing
make or break test
why APB
Appearance of median nerve at surgery
constricted
hyperemic