Distal limb Nerve Blocks

Question 1

Nerve blocks below the carpus are mostly what?

Answer 1

Sensory blocks. We are now too distal to hit muscular branches

Question 2

What are some reasons that an animal could remain lame after nerve blocks?

Answer 2

• Poor block
• Diffusion into synovial structures
• Variant innervation
• Mechanical lameness rather than from pain
• Area of pain is more proximal

Question 3

When doing nerve blocks, where do you start?

Answer 3

From bottom to top

Question 4

Where is a palmar digital block?

Answer 4

At the proximal edge of P3. Put anesthetic around the nerve to diffuse into the nerve. Blocks palmar part of the foot, no toe region

Question 5

Where is the basisesamoidean nerve block?

Answer 5

At the base of the proximal sesamoid. Blocks the whole foot

Question 6

Where is the Distal metacarpal block?

Answer 6

Palmar and plantar nerves as well as palmar and plantar metacarpal nerves below the metacarpal nerves. 4 point block: 2 nerves on both sides have to be anesthetized. Block everything from the fetlock down

Question 7

What are the landmarks for distal metacarpal blocks?

Answer 7

• Between interosseous and flexor tendons (palmar nerves)

- Level distal from end of splint bone (metacarpal nerves)

Question 8

What does a proximal metacarpal block?

Answer 8

Fetlock down as well as proximal parts of the suspensory

Question 9

What does a suspensory nerve block?

Answer 9

All fetlock joint, origin of suspensory, and part of the carpal joint