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This Concept Map, created with IHMC CmapTools, has information related to: Regional anesthetic in equine lameness, Types of joint blocks Stifle joint block, Types Tibial, Types of joint blocks Fetlock joint block- Common site of lameness in young TB racehorses due to cartilage and bone injury, also in the general horse population where arthritis often develops with age., Carpus joint block- seen in race horses that have arthritis What do you need? 1.5" 20G 7-10cc Procedure: 1. Radiocarpal joint and intercarpal joint- the needle is injected dorsally with the carpus flexed. Palpated as indentation on medial or lateral side of extensor carpi radialis tendon. Proximal border is the dorsal distal radius and distal border is dorsal proximal radial intermediate carpal bone. The needle is directed straight into the indentation 2. Lateral approach- palpate notch created by the ulnaris lateralis tendon and lateral digital extensor tendon. Insert teh needle into small depression immediately distal to this notch. Can be performed with horse standing on limb, Localisation of lameness in limb diagnosed by Local Anesthetics, Types Medial palmar, Perineural Blocks include Lidocaine hydrochloride, Types Abaxial sesamoid, Perineural Blocks include Mepivacaine hydrochloride, Types Medial forelimb, Types of joint blocks Carpus joint block, Contraindications for Nerve Blocks in horses Includes Risk of trauma to animal and attending Veterinarian, Nerve blocks utilise Common drugs, Local Anesthetics used for Intrasynovial Blocks, Types Palmar digital, Intrasynovial Blocks include Bupivacaine hydrochloride, Contraindications for Nerve Blocks in horses Includes Joint infections, Intrasynovial Blocks include Mepivacaine hydrochloride, Types Proximal metacarpal, Regional anaesthetic in equine lameness begins with Localisation of lameness in limb