nerve/joint blocks

Question 1

(palmar/plantar digital nerve block)

1. blocks?

Answer 1

1. palmar/plantar third of foot and sole

(Navicular bone, navicular bursa, digital cushion, distal aspect of DDFT, wings of P3, sole, bars, heels, frog, (occasionally) coffin joint)

Question 2

abaxial nerve block

1. blocks what?

Answer 2

everything below level of fetlock

(foot, coffin joint, pastern joint, P1/P2/P3, distal ddft, distal extensor tendons, distal sesamoidean ligaments)

Question 3

(Low four point nerve block)

1. specific for forelimbs
2. targets?

Answer 3

2. lateral and medial palmar nerves

lateral and medial palmar metacarpal nerves

Question 4

(six point nerve block)

1. specific for hind limbs
2. targets?

Answer 4

2. same as four point + dorsal metatarsal

Question 5

Low Four and Six Point Nerve block

1. blocks what?

(DDFT/SDFT up to level of block)

(insertion/branches of suspensory ligament)

Question 6

(proximal metacarpal/tarsal)

1. blocks what?

Answer 6

1. all structures distal to the carpus, including the proximal suspensory ligament

Question 7

(median and ulnar nerve block)

1. blocks waht?

Answer 7

1. entire limb from distal radius down, including the carpus

Question 8

(peroneal and tibial nerve block)

1. blocks entire limb from distal tibia down, including the tarsus

Question 9

(coffin joint block)

1. what approaches?

what is more common?

2. blocked?

Answer 9

1. dorsal or lateral

dorsal (well innervated and vascular - will bleed)

2. entire coffin joint, navicular bursa (by diffusion)

Question 10

fetlock joint block…. yeah

Question 11

(carpus joint block)

1. what is isolated?
2. what one spreads?

Answer 11

1. radiocarpal
2. intercarpal also blocks carpal-metacarpal joint

Question 12

(tibial-tarsal joint block)

1. blocked?
2. beware of what?

Answer 12

1. tibial tarsal, as well as proxiaml inter-tarsal joint (due to communcation)
2. saphenous vein

Question 13

(distal intertarsal joint)

1. needle inserted into T joint gap formed by junction of what?

Answer 13

1. fused first and second tarsal bone, third tarsal bone, central tarsal bone

Question 14

(tarsal-metatarsal joint)

1. how often do distal intertarsal and tarsal-metatarsal joints communicate?
2. how often does distal intertarsal joint communicate higher up with proximal intertarsal and tibiotarsal joint?

Answer 14

1. 25%
2. 10%

Question 15

(stifle joint block)

1. what % communications between femoral-patellar and medial femoral-tibial?
2. what % between femoral patellar and lateral femoral-tibial
3. what between medial femoral-tibial and lateral femoral-tibia

Answer 15

1. 25%
2. 15%
3. 30%

Question 16

1. can any synovial structure be injected?

Answer 16

1. yes