A5: Appendicular repair Flashcards
What is the tension aspect of the humerus and radius?
Craniolateral
Where is the tension aspect of the ulna?
Caudal
Where is the tension aspect of the femur?
Lateral
Where is the tension aspect of the tibia?
Craniomedial
What kind of plate can you use for transverse or short oblique fractures?
Compression plate
Where is the only approach to the femur?
Lateral
Why are distal radial fractures in toy breeds prone to atrophic non-union if treated with external coaptation?
Poor blood supply and excessive movement in cast
What is a neutralisation plate for?
Removes forces across the site so you can fix it with other methods e.g. screws
When do you use a bridging plate?
Where simple reconstruction isn’t possible as fragments that support load sharing are missing, so realigns fracture whilst maintaining length
Why must you restrict movement of bridging plates?
Breaks after 1 million bending cycles
What’s the advantage of a pin-plate combination?
Helps reduction, stronger construct
What are the main forces on an articular fracture?
Shearing from dynamic loading and articular motion
What are the four principles of articular fracture repair?
Anatomic reconstruction, rigid internal fixation, direct fracture healing, rapid rehabilitation
When should you only remove the bone fragments?
If infected - otherwise leave
What is the principle of an avulsion fracture?
Convert force from muscle tension into compression
