Pancarpal arthrodesis, partial

Question 1

Biomechanical papers

Answer 1

-Wininger 2007: hybrid DCP vs DCP - hybrid stronger in bending failure
-Arnott 2008: hybrid DCP +/- cross k-wires - higher yield loads for added k-wire but both constructs exceed physiological loads
-Guillou 2012: hybrid DCP vs LC-DCP - hybrid DCP superior
-Rothstock 2012: hybrid DCP vs castless - castless 20% less risk of MC #; but peak stresses below failure load of cortical bone - large safety margin
-Meson 2012: hybrid DCP vs castless - no mechanical adv for castless

Question 2

Taun NZVJ 2019

13 PCA - LCP + crossed cortical screws or kwires

Answer 2

70% full fx
30% major comp
30% SSI, 8% screw loosening

Question 3

Chong VCOT 2022

Retrospective
PCA - 15 ALPS, 14 hybrid DCP

Answer 3

70% full fx ALP and hybrid DCP - not different
30% major comp
30% SSI

Question 4

Choi Frontiers 2023

implant removal after partial arthrodesis in 22 dogs

Answer 4

55% implant removal due to persistent lameness
75% return to fx after implant removal
type of implant influenced implant removal -100% pins/wires removed, 41% plates removed