surgical immobilization of a joint by fusion of the adjacent bones
What are the indications for
arthrodesis of the PIJ (pastern joint)?
High ring bone
Pastern septic arthritis
What are the 3 surgical techniques that can be used to
accomplish arthrodesis of the PIJ (pastern joint)?
Trans-articular lag screws
Dorsal plate (DCP or LCP)
Screws AND Plate
What is the best way to accomplish
arthrodesis of the PIJ (pastern joint) and why?
Transarticular lag screws + dorsal plate
better stability and comfort
less time in cast and hospital
less periarticular bone formation on dorsal aspect
What type of incision is used in
arthrodesis of the PIJ (pastern)?
Inverted T incision
What are the landmarks for the longitudinal portion
of the inverted T incision?
Junction of the proximal and middle third of the proximal phalanx
2 cm above the coronary band
What structure is visualized upon
inverted T incision?
Common Digital Extensor (CDE) tendon
This type of incision is used to transect the
common digital extensor tendon
in order to elevate and reflect it distally
Inverted V incision
For arthrodesis of the PIJ/Pastern joint,
after removing any bony proliferations on the dorsal
surface and the cartilage in the joint capsule,
__________ of the subchondral (P1,P2) bone plates
is done using a 2.5 mm drill bit
Osteostixis (surgical puncture of a bone)
How many osteostixis are made
in P1 and P2 for screw placement
in arthrodesis procedure?
TWO glide holes in P1
ONE thread hole in P2
After drilling the holes in P1 and P2,
you need to _______ and tap
and enter P1 at an angle to get into P2
What has a better success rate for pastern arthrodesis?
Forelimb or Hindlimb?
HIND limb = 95% success
What is the forelimb success rate for pastern arthrodesis?
This type of imaging is a must
intra and post op for
pastern arthrodesis sx.
Even though the success rate for pastern arthrodesis
is so high, complications are life threatening and costly.
Name some complications associated with this sx.
implant (plate) failure
ischemia of distal limb
_______ are the mainstay for
management of complications for pastern arthrodesis
What meds are used to manage complications of
pastern arthrodesis sx?
Aspirin, Acepromazine, Pentoxyphylline