R/U Flashcards
Nelson and Strom, VCOT, 2017:
1.5mm locking adaption plate vs 2.0mm LC-DCP
Major complication rate for locking adaption plate vs LC-DCP?
What fracture configuration was most commonly associated with complications?
Nelson and Strom, VCOT, 2017:
Locking adaption plate: 50% major complication rate
LC-DCP: 14% major complication rate
Short oblique fracture configurations were most commonly associated with complications
Watrous, VCOT, 2018:
1.5mm LCP vs 1.5mm straight plate vs 2.0mm straight plate
Which plate had the highest stiffness?
1.5mm LCP vs 1.5mm straight plate?
Watrous, VCOT, 2018:
The 2.0mm straight plate had the highest stiffness
The larger hole-to-hole distance of the 1.5mm LCP compared to the 1.5mm straight plate could limit the number of screws that can be placed in a small fragment, and the torsional stiffness of the 1.5mm LCP was not statistically different from that of the 1.5mm straight plate
Aikawa, VCOT, 2018:
ORIF
Minor complication rate?
Major complication rate?
Aikawa, VCOT, 2018:
11% minor complication rate
6% major complication rate
Aikawa, Vet Surg, 2019:
Free-form multiplanar type II ESF
What % healed in a median of 60 days?
Major complication rate?
Aikawa, Vet Surg, 2019:
100% healed in a median of 60 days
3% major complication rate
Ree, Vet Surg, 2018:
Autologous greater omentum free graft vs autogenous cancellous bone graft
Minor complication rate with omental graft vs bone graft?
Major complication rate with omental graft vs bone graft?
Effects of omental graft on ground reaction forces?
What % developed osteopenia with omental graft vs bone graft?
Adverse effects of the omental graft?
Ree, Vet Surg, 2018:
Minor complications: 64% for omental graft vs 17% for bone graft
Major complications: 0% for omental graft vs 8% for bone graft
The omental graft group had improved ground reaction forces (increased peak vertical force and vertical impulse) and earlier return to weight-bearing
Osteopenia developed in 36% of the omental graft group vs 58% of the bone graft group
Adverse effects of the omental graft were limb swelling and erythema in 64% of the dogs due to reactive omentum becoming enlarged and edematous
Munakata, VCOT, 2018:
Frozen cortical bone allograft + cancellous bone autograft + FGF-2 for nonunion
What % of cases achieved radiographic bone union and bone remodelling?
Munakata, VCOT, 2018:
100% of cases achieved radiographic bone union and bone remodelling
Parent
ORIF distal RU in mini & toy breeds
JAVMA 2017
Mean distal-to-total radial length 0.21
95% no lameness
Complications 25%
Basa
Kinematics of Feline Antebrachiocarpal
VCOT 2021
Translation & Rotation of Proximal Row of Carpal Bones independently from ulna in pronation
Ree
Omentum Free Graft vs. Cancellous Bone Graft R/U
VetSurg 2018
Improvement in peak vertical Force
Omental > Bone Graft at 3 weeks
Radiographic healing
Omental 9 wk > Bone Graft 12 wk
Cortical Bone Density
Omental < Bone Graft
% of Proximal vs. Distal Radius growth plate contribution to length
50/50
or
70/30
Timing of radius/ulna physis closure
222-250d
Mean radius procurvatum
26.6 degrees
Methods of R/U fixation
ORIF
MIPO
External Fixator
-Linear (1a, 1b, 2)
-circular
-hybrid
Bierens et al VetSurg 2017
What was the outcome of miniature circular external skeletal fixators for us in small and toy breed R/U fractures?
95% good to excellent outcomes
Fracture dynamization delayed radiographic union
Bone union in 33-84 days
What were the findings of De Arburn Parent et al JAVMA 2017 regarding ORIF for R/U fractures in mini and toy breeds?
25% complication rate - vast majority minor
96% of owners reported good to excellent outcome
98% of dogs had post op external coaptaiton
What did Ree et al VetSurg 2018 conclude about momentum free graft vs bone graft from R/U fractures in mini breeds?
Omental graft - faster bone union, greater peak vertical force, more vessels, no major complications
Bone graft - increased cortical bone density
What did Fournet et al VCOT 2018 conclude about pin and tension band vs plate osteosynthesis for olecranon fractures?
Long term functional outcomes excellent regardless of technique used
complications more common with pin and tension band
Avoid pin and tension band in comminuted fractures
According to Williams et al VCOT 2019 what is a rare, but severe postoperative complication following proximal ulnar osteotomy or osteotomy?
Lateral radial head subluxation
Schmokel JSAP 2021
Novel titanium locking plates w/o antibiotics.
Average BW in this study
Deep infection rate
Average BW in this study
3.9 kg
Deep infection rate
3.1%
Higuchi JSAP 2021
Orthogonal plating r/u fractures
Average weight
Complications observed
Average weight
3.5 kg
Complications observed
-Synostosis (n1)
-Refracture after cranial plate removal (n1)
Muroi VCOT 2021
R/U fracture repairs
Patient under what age increased bone density after what time period?
When did pixel value improve in the plate removal group?
Patient under what age increased bone density after what time period?
-under 6 months
-increased after 3 months
When did pixel value improve in the plate removal group?
-after 3 months
Radius Ex-Fix
Ia
Ib
II
