11. Digital Block Flashcards
volar
palm side
anterior
dorsal
back on hand
posterior
median hand (anterior/posterio)
ulnar
C8-T1
posterior lateral hand
radial
C5-C6
anterior lateral hand
fingertips of first 3.5 digits
median
C6-C8
digital block indications
finger or toe surgery
ring block insertion
dorsolateral aspect of base of finger
ring block needle advance
until it contacts bone (phalanx)
ring block volume
< 2 mL on each side
-1 mL as withdrawing first 1-2 mm after bone contact
- 1 mL as withdrawing to skin
TOTAL ring block volume
< 4 mL per digit
transthecal block needle insertion
45 degree angle
distal to palmart crease
where is LA injected into for transthecal block
flexor tendon sheath
transthecal block volume
2-3 mL
resistance during transthecal block indicates
needle tip contacting tendon
transthecal advantage
single injection
which is more painful ring block or transthecal block?
transthecal block
subQ volar digital block needle injection
pinch skin on volar side of finger
insert perpendicular