Term
| What are some conditions that can predispose to laminitis? |
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Definition
-endocrine: metabolic syntrome, PPID
-acute diet change
-shock: colic, colitis, metriits, pleuropneumonia
-trauma
-renal failure
-toxins: ingestion of black walnut shavings |
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Term
| What are the key endocrine mechanisms of laminitis? |
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Definition
| -epidermal secondary laminar pathology associated with hyperinsulinemia and IGF-1 receptor |
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Term
| What are the key inflammatory mechanisms of laminitis? |
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Definition
| -systemic inflammatory response syndrome resulting in the cascade of events that leads to dermal/epidermal separation |
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Term
| What are the ischemia mechanisms of laminitis? |
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Definition
| -blodo flow alterantions resultin in ischemia nd cellular death leading to dermal/epidermal separation |
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Term
| What are the enzymatic mechanisms of laminitis? |
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Definition
| -early initiation ov BM breakdown by endogenous ensymes stimulated by blood born trigger factor |
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Term
| What are the clinical signs of laminitis? |
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Definition
-ForelimbL shifting weight caudally
-bounding pulses
-inc hoof temp
-reluctant to move especially turning
-unwilling to allow foot picked up
-recumbent
-dropped sole
-prolapsed solar corium |
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Term
| How do we diagnose laminitis? |
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Definition
-clinical signs
-hoof testers
-rads
-rotations and/or laminar separation can occur with other conditions like club foot and white line disease |
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Term
| How do we use rads to diagnose laminitis? |
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Definition
-DP P3 views, lateral P3 views (dorsal hoof wall marked from coronet to ground surface
-DO ALL FOUR FEET REGARDLESS OF CLINICAL SIGNS |
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Term
| What measurements do we take to diagnose laminitis in conjunction with rads? |
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Definition
-H/L zone: horn-laminar zone
-CE measurement: vertical distance coronet-extensor process
-sole depth
-palmar angle |
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Term
| When do we repeat rads for laminitis? |
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Definition
-progression
-sole growth
-shoeing
-lameness
-venograms |
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Term
|
Definition
-assess blood flow in relation to P3 location
-improvement while shoeing |
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Term
| What affects the prognosis of laminitis? |
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Definition
-weogt
-inciting cause
-severity and progression in acute causes
-corelimbs vs hindlimbs vs all 4
-rotation vs sinking
-response to mechanical intervention: sole growth |
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Term
| What is the prognosis of laminitis? |
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Definition
-to return to athlete is guarded
-recurrent abscesses common
-complete separation of hoof capsule necessitates euthanasia |
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Term
| How do we treat EMS as a primary cause of laminitis? |
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Definition
| -dietary intervention, metformin, thyroxing |
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Term
| HOw do we treat PPID as a primary cause of laminitis? |
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Definition
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Term
| Which anti-inflammatories do we give for laminitis? |
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Definition
| -Flunixin Meglumine or Phenylbutazone |
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Term
| What drugs do we give to fix the vascular issues with laminitis? |
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Definition
-Vasodilators: Acepromazine
-Anticoagulants: Heparin, Aspirin |
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Term
| What drugs do we give to fix the inflammation issues with laminitis? |
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Definition
-Phenylbutazone, Flunixin Meglumine, etc
-cryotherapy |
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Term
| What drugs to we give to fix the enzymatic issues with laminitis? |
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Definition
-Anti-inflammatories: BUte, Flunixin
-Cryotherapy |
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Term
| What are the machanical angles of treatment we use for lamintis? |
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Definition
-stall rest on sand
-frog/sole support: cushion support, impression material, heart bar shoes
-elevate heels: redden ultimates, wedge pads, wood shoes, other
-move breakover caudally |
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Term
| What are our mechanical goals of laminitis mechanical therapy? |
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Definition
-raise heels 20 deg
-move beakover towards center of rotation
-support weight on heels and caudal sole
-derotation shoeing methods combined with DDF tenotomy |
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Term
| What are our trimming goals with laminitis? |
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Definition
-zero degree palmar angle
-promote sole growth, break over, heel elevation
-derotation shoeing with DDF tenotomy |
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Term
| How do we perform DDF tenotomy? Any special requirements postop? |
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Definition
-recumbent or standing
-post surgical derotation shoeing required |
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