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Unit 7: Equine Lameness - Coggle Diagram

- - - - abscess
      - bruise
      - laminitis
      - flexor tendon stretch
    - - abscess
      - fracture
    - - navicular bone
  - - - head nod
        
        upward on lame limb
        
        downward on sound limb
        
        horse is shifting weight away from sore limb
    - - greater hip excursion on lame limb
      - "hip hike" in sounds leg
      - hip drop in lame leg
  - - - longlasting (3-6h)
      - tissue toxic
    - - last 2h
      - acts quickly
    - - midpastern region
      - use 25g needle
      - start dorsally
      - inject sq
      - desensitizes
        
        heel
        
        sole
        
        may not block collateral ligaments of coffin joint
        
        all foot structures except
        
        dorsal laminae
        
        dorsal coronary band
  - - - horse won't tolerate blocks
      - multiple limbs lame
- - - - luxation risk
      - should joint moves outward from scapula
  - - - needlestick
      - injury
    - - restriction fwd motion to hindlimb action at a walk
      - hoof slapped to the ground
  - - - stiff extended leg
      - moves fwd normally when stifle "unlocks"
      - worse in reverse
  - - - overflexion of the limb on forward stride
      - hindlimb pulled up in exaggerated motion, may hit ventrum
  - - - involuntary jerky flexion of pelvic limb and tail extension
      - leg held off the ground in flexed position
      - mm of tail and hindlimb quiver
      - worse when horse is reversed or turned
  - - - loss of reciprocal apparatus
      - hock not flexing when horse is moving
      - hock can be extended when stifle is flexed
  - - - developed during dystocia
      - overextension of stifle when tarsus is flexed
    - - developed during exercise
    - - dropped tarsus when stifle is extended
      - inability to straighten hinglimb
      - unable to bear weight on limb if complete rupture