Nerve Block notes

Question 1

Palmar digital nerve block goal and how do you know it worked?

Answer 1

block the PD nerve to eliminate sensation to caudal 1/3 of the hoof and entireeee sole; know it worked by allowing 10 mins and then applying light pressure to the medial and lateral aspects of the heel bulbs

Question 2

Abaxial seasmoid Nerve block goal-

Answer 2

blocks everything below the fetlock

Question 3

Peroneal nerve block goal:

Answer 3

eliminate sensation to the cranial aspect of the hock

Question 4

Tibial nerve block- beware of this–>

Answer 4

this MUST be the LAST block of the day, horses may severely drag their toe from loss of extensor functioning, never use extra long anesthestic agent like bupivicaine

Question 5

What do we NOT use with tibial nerve blocks for anesth. agent??

Answer 5

Bupivacaine- bc will last too long and horse will drag toes and will prob need to stay in hospital

Question 6

If horse was L FL limb and we did a regional block and now it is sound but lame on the R FL, what that a successful block?

Answer 6

Yessss

Question 7

Why is it called low 4 point block?

Answer 7

4 locations being blocked-
medial and lateral metacarpal nerve
medial and later palmar nerve

Question 8

if horses have effusion of their sheath, we should go around it because we want to block the nerve, not the synovial structures. T/F

Answer 8

True!!!

Question 9

6 point nerve block is called 6 point because…

Answer 9

dorsal lateral metatarsal nerve 
Dorsal medial metatarsal nerve 
lateral metatarsal nerve 
medial metatarsal nerve 
lateral plantar nerve 
medial plantar nerve

perform this block first in HL, dont do PD or abaxial nerve blocks on HL

Question 10

peroneal nerve blocks blocks the ____ and ___ nerves

Answer 10

tibial and peroneal nerves

Question 11

what area is desensitized with the palmar digital nerve block?

Answer 11

50-70% of the palmar/plantar aspect of the foot (most of the digital interphalangeal joint)

Question 12

You are evaluating a horse with a right FL lameness that resolves by 85% after performing a four point nerve block. What is most likely the region of the lameness?

Answer 12

The metacarpalphalangeal (fetlock) joint or below

Question 13

Answer 13

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Question 14

Answer 14

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Question 15

Answer 15

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Question 16

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Answer 16

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Question 17

Answer 17

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