Declawing and Dehorning Flashcards
Where is the horn developed from?
Cornual process (frontal bone)
Epiceras (outer layer)
Where is the germinal epithelium of the horn bud?
Lying between the cornified epithelium and the dermis
Periople
Transition between skin and horn
Dehorning is done _________ to the epiceras to prevent _______________
Proximal
Re-growth
Dehorning
Mostly done during the 1st week after birth by removing the germinal epithelium (horn bud)
Cornual nerve
Branch of the zygomaticotemporal of the maxillary
Runs just below the temporal line
Where is the cornual nerve blocked?
Ventral to the temporal line midway between the horn and eye
Cornual artery
Branch of the superficial temporal (along temporal line)
What are the methods of dehorning?
- Caustic Paste (< 8weeks)
- Hot-iron dehorning (heat cauterization)
- Knife dehorning
- Wire and hand saw dehorning
What are cows prone to in order to need declawing?
Sole Abscess
Laminitis
Foot root
Fractures
Penetration wounds
What do the declawing causes mainly affect?
Lateral claw of hindlimb because of longer lateral digits in the fore and hind limbs
How many digits do bovine have?
2
Extensors tendons for declawing
Extensor carpi radialis muscle
Extensor carpi obliques muscle
Common digital extensor + medial (proper) tendon + lateral (middle) tendon
Lateral digital extensor + lateral (proper) tendon
The distal interdigital ligament prevents _______________
splaying
Different types of anesthesia done?
Regional Retrograde anesthesia
Intravenous local anesthesia through dorsal metatarsal/metacarpal vein
