Humeral Condyle

Question 1

Coggeshall, Vet Surg, 2017:
Adjunct fixation with a K wire or plate for lateral unicondylar humeral fractures
Which was biomechanically superior - adjunct plate fixation or adjunct K wire placement?

Answer 1

Coggeshall, Vet Surg, 2017:
Adjunct plate fixation was biomechanically superior to adjunct K wire placement as plate constructs reached higher stiffness, yield load and failure load

Question 2

Chase, Vet Surg, 2019:
Transcondylar screw for IOHC
Post-op complication rate?
What % of the post-op complications were SSI?
How much more likely were dogs with a SSI to have unsatisfactory long-term outcomes than dogs without a SSI?

Answer 2

Chase, Vet Surg, 2019:
69% post-op complication rate
61% of the post-op complications were SSI
Dogs with SSI were 28 times more likely to have unsatisfactory long-term outcomes than dogs without SSI - 100% of dogs with SSI had an unsatisfactory long-term outcome vs 52% of dogs without SSI

Question 3

Moffatt, VCOT, 2019:
Repair of T-Y humeral condylar fractures with LCPs
What % had a post-op articular step defect of <1mm?
Short-term outcomes?
Complication rate?

Answer 3

Moffatt, VCOT, 2019:
94% had a post-op articular step defect of <1mm
Full functional outcome in 69% and acceptable functional outcome in 31% in the short-term
15% complication rate

Question 4

Smith
Breed associated with humeral condylar fracture
JSAP 2020

Answer 4

Frenchies 41%
English Springer Spaniel 15%

Lateral 70%
Medial 9%
T/Y 21%

Median age at the time of fracture was 4 months

Question 5

Moores
Natural History of Humeral intracondylar fissure
JSAP 2017

Answer 5

Mean fissure size of 50%
~fractured at a mean of 14 months after diagnosis
~18% progressed to fractures
~24% required Sx

Question 6

Villamil
Breed impact on Humeral condylar fx
VetSurg 2020

Answer 6

Breeds associated with HCF
~Frenchies (6.58X medial)
~Spaniels

Epicondylar plate
~fewer complications than lag screw & k-wire