Long Bone Fractures: Cannon, Ulna, Femur, Tibia, Complications, ExFix, Stack Pinning, Mandibular Fractures Flashcards
These lectures were taught by Dr. Erika Little
T/F: The prognosis for complete displaced condylar fracture is good for returning to racing
False
T/F: Condylar fracture of the cannon bone is most commonly seen in racing thoroughbreds
True
T/F: Horses with incomplete non displaced condylar fracture have mild lameness
True
What is the optimal treatment for a simple transverse fracture of the cannon bone?
double plate fixation
What type of plate is shown here?
locking compression plate (LCP)
T/F: Locking compression plates (LCP) can be placed using standard screws or locking screws
True
T/F: Horses should be ambulatory and fully weight bearing immediately post-op after plating
True!
Where on the ulna do the triceps insert?
olecranon
apophysis in young patients
What are some differentials for this image?
- Humeral fracture
- Radial nerve paralysis
- Olecranon fracture
- Neuro dz (rare)
What is the treatment of choice for olecranon fracture repair?
ORIF
Open reduction, internal fixation
When repairing ulnar fractures in horses less than 1 year old, the distal screws should not engage the radius. Why not?
May lead to subluxation of the elbow
T/F: Prognosis for ulnar fractures is good with internal fixation
True
(67% - 87%)
What type of external coaptation is being used here?
Thomas-Schroeder Splint/Cast Combo
T/F: In farm animals, tibial fractures are commonly encountered in every age group and repair with external coaptation is frequently possible
True
What type of external fixator is being applied here?
Type 2
What type of external fixator is being used for this open fracture of the metacarpus?
Type 3
Why do bone plates and screws tend to fail in ruminants <4 months old?
Cortical bone is thin and soft
What is the treatment of choice for femur fractures in young calves?
stack pinning and cerclage wire
For femoral fractures in foals, the treatment of choice is double plating on the ________ and ________ aspect of the cortex
For femoral fractures in foals, the treatment of choice is double plating on the cranial and lateral aspect of the cortex
What are the two most common reasons for amputation?
severe osteomyelitis, neurovascular damage
