Musculoskeletal Pt 4 Flashcards
One of a horses hind legs is slapping down on the ground after a forward motion, what is wrong?
Fibrotic or ossifying myopathy
What causes fibrotic or ossifying myopathy
Injury to the hamstring muscle heals with scarring/calcification
Hyperextension of hocks and stifles or after intramuscular injections
How is fibrotic or ossifying myopathy diagnosed
Clinical appearance, palpation of scar tissue
How is fibrotic or ossifying myopathy treated
Difficult
Surgery?
If acute, then minimized inflammation and physiotherapy (prevents fibrosis/ossifying)
How serious is F or O myopathy
Loss of ROM, not painful
Performance-limiting
A horse has sudden cramping of muscles, stiffness and is reluctant to move. It sweats and paws due to pain. It occurs when exercised after a period of rest. What is wrong?
The horse has exertional Rhabdomyolysis
What does exertional rhabdomyolysis stand for
Exertional = exceeds state of training
rhabdo = striated
Myo = muscle
lysis = breakdown/rupture
How do you diagnose exertional rhabdomyolysis
Hardening of hindquarter muscles, blood tests=muscle breakdown, hydration status, kidney function
How do you treat exertional rhabdomyolysis
STOP EXERCISE
Acepromazine (sedation)
If severe, give fluids to address dehydration and support kidneys
How severe is exertional rhabdomyolysis
Can be mild/isolated or severe and recurrent
What are the complications of exertional rhabdomyolysis
Kidney disease or failure, NSAIDs might not be safe to use (further kidney damage)
What are the four forms of chronic tying-up, how do we identify them
- Type 1 polysaccharide storage myopathy
- Type 2 polyssacch..
- Malignant hyperthermia
- Recurrent exertional rhabdomyolysis
Identified using muscle biopsies or genetic testing
