1- Principles of fracture management Flashcards
What type of radiographs do you take for a suspected fracture?
Orthogonal radiographs
- 2 at right angles tone another
What is fracture scoring based on?
Indication of severity & biological nature of the fracture swell as non-biological fractures (finances/surgeons ability)
Factors to consider for fracture repair
Patient factors = weight of animals, Age, Boisterousness, Concurrent illnesses
Fracture = Type, Open/closed?, Soft tissue damage?, Single/several
Owner factors = cost/compliment
Surgeon = equipment/ability
What are the 4 normal physiological forces that occur on bone when weight bearing/from muscle contraction?
Bending
Torsion
Tension
Axial compression
Define bending
limb is placed at an angle to ground/asymmetrical m. contraction
define torsion
When body changes direction with leg planted on ground
When applying a plate to a fracture what side is applied to and why?
Tension or compression side?
Tension side as it will not be broken by tensile forces but will be by successive compressions
Compression of a commented/oblique fracture causes…
collapse or shearing of the fracture
How does the force tension affect a fracture? & how can this be overcome?
Ligaments/tendons pulling causes the fracture to be distracted
Lag screwing or tension bands
Torsion results in rotation of the fracture site, how can this be managed?
Plates, external fixator or an interlocking nail
How can the bending of a bone fracture due to asymmetrical loading be managed?
Pin in the centre of the medullary cavity
T/F Secondary bone healing requires bone to bone healing
FALSE - this is primary bone healing
How can strain on a fracture be reduced?
Gap can be widened
Bone ends reabsorb/stiffen by the formation of granulation tissue, callus & finally bone
