Fracture repair in horses (Bauck) Flashcards
How do foals heal compared to adults
faster
angular limb deformities
Salter Harris fx
Where is the coffin joint
distal interphalangeal joint
Pastern joint
Proximal interphalangeal joint
Fetlock joint
metacarpo/metatarsophalangeal joint
Knee
Carpus
Hock
tarsus
When should you stall rest
Stress fx
Splint bone fx
Risk of stall rest
catastrophic propagation
What is the only limb you should use external fixation on
Distal forelimb
When do you use external skeletal fixators
Foals and not weight bearing fx
What is external skeletal fixation device
U shaped w/ transosseous pins incorporated into tapered sleeves
What are external skeletal fixation devices used for
comminuted phalanx
MC/MT 3 breakdown
MCP breakdown
Key principles of interal fixation
anatomic reduction
rigid fixation
Preservation of blood supply
Early mobilization
Cortex screw
Large core
Small thread
Stronger more rigid
Cancellous screw
small core
large thread
Not common
How fast do you drill
1mm/s
What is tapping
creates thread holes in the drill holes
improves bone screw interface
DCP plate fixation
Squeezes the fx together
LC-DCP
scalloped edges make plate stronger
LCP
has threaded holes for locking screws
Increase stiffness and rigidity
What is the minimum number of screws that should be placed on each side of fx
4
One of the most important complications
supporting limb laminitis
Sinking/rotation of P3