Biomechanics

Question 1

Palierne
2 locking plate constructs
VCOT 2019

Answer 1

Omission of 3rd innermost locking screw
~led to a 20% reduction in stiffness
~increased relative displacement of 40%

Question 2

Beever
PO complications associated with ESF
VCOT 2018

Answer 2

Complications associated with
~Transarticular frames
~Age

Question 3

Wagoner
Fiberglass & Thermoplast
VCOT 2018

Answer 3

FG > TP cranially

Lateral splints 64% reduction in frontal plane motion with FG

Question 4

Macedo
2.5 mm Locking nail
VCOT 2017

Answer 4

Nail compared to 2.4 mm bone plate
1/2 torsional strength
1/3 stiffness

Slippage of the locking mechanism was probably the cause of the early failure

Question 5

Ficklin
Biomechanics of PMMA & Abs
VCOT 2016

Answer 5

Compression changed by Vancomycin

4-point bending
~Sliver weaker than control
~Vancomycin lower than standard

Cephazolin least affect

Question 6

Marturello
I-Loc Feline Fx
VetSurg 2021

Answer 6

Time to clinical union 7.2 weeks
Mean fill of 50%

I-Loc 3 is likely appropriate for all feline humeri
I-Loc 4 is well sized for feline femora

Question 7

Muro
Stiffness Type II Ex Fix vs. LCP
VetSurg 2021

Answer 7

ESF stiffer than LCP
~ML Bending
~Axial Compression
Equal in CC Bending

Type II ESF stiffer
ML bending than in CC bending

LCP stiffer
CC bending than in ML bending