
02/07/2025
Gus getting ready to do some nerve blocks with a very handsome patient ๐คฉ I keep asking the vets for photos but they are so busy doing things, it doesn't always happen...๐คฃ This time we managed to get a couple of him in action!
A brief recap on nerve blocks; a procedure that the vets often use to pinpoint affected areas (or rule them out) - its a controlled method of temporarily numbing specific areas to help us localise lameness or discomfort.
We inject a local anaesthetic into a joint or nerve region. ๐ If the horse moves more comfortably afterward โ bingo! Weโve found the source of the pain. However, if they numb a region, this can mean multiple structures in that area may be affected (tendons, ligaments, joint capsules, and even nearby soft tissues). ๐ท Therefore we often need to pair diagnostic nerve blocks with diagnostic imaging (like X-rays or ultrasound) to get the clearest picture of whatโs happening.
๐ฌ Common myths:
โ โItโs just for serious casesโ โ Not at all. Itโs useful even in subtle or early lameness, i.e. to confirm a hoof abscess is the issue.
โ โItโll fix the problemโ โ Not quite. Itโs a diagnostic tool, not a treatment. Although it can be combined with joint medication, nerve blocks can wear off in anywhere from around 1-3 hours (depending on which analgesic agent is used).
โ โYou can block anything" - No, there are limits. They are primarily effective in the lower limb from hoof up to the knee or hock. This is because, in these regions, the anatomy is well-mapped, the nerves are relatively easy to access, and pain can often be localised to a specific joint or structure. Once you move higher up (into the shoulder, upper hindlimb, hip, or pelvis), things become more complex, with overlapping and branching nerves, deeper soft tissues, and multiple layers of muscle, which makes it significantly harder (and riskier) to isolate a specific area.
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Why it matters:
The sooner we know whatโs wrong, the faster we can treat effectively, and improve your horseโs comfort and performance.
๐ฏ Early diagnosis = better outcomes!