Splint Bone and Proximal Sesamoid Bone Fractures Flashcards
Which splint bone has minimal articulation and weight transfer with the tarsal bones?
MT4
Provide axial support to carpus and tarsus
Splint bones
Is the accessory carpal bone medial or lateral?
Lateral
Is MT4 medial or lateral?
Lateral
What causes closed splint bone fractures?
Hyperextension of the fetlock
What causes open splint bone fractures?
External trauma
What may cause persistent lameness assoc. w/splint bone fractures?
Suspensory desmitis
How do you treat a proximal splint bone fracture?
Remove loose fragments and internal fixation
How much of a residual distal splint bone can you remove?
Less than 2/3
If you remove more than 2/3 of the distal splint bone, what other stabilization do you need?
Internal fixation of proximal fragment
What soft tissue is most commonly injured along with splint bones?
Suspensory ligament
When plating a splint bone fracture, why should you not engage MC3 with the plate?
Micomotion will cause persistent lameness
If you do have to engage MC3 with a plate, when must the plate be removed?
3-4mo later
Occurs in MC2 of young horses d/t direct trauma or ligamenous inflammation
Splint exostosis
What is the most common cause of splint exostosis?
One forelimb hits the inside of the other leg