ALDs in Foals

Question 1

at what age can you use transphyseal bridging for radius?

Answer 1

10-12 months

Question 2

at what age can you use transphyseal bridging for tibia?

Answer 2

8-10 months

Question 3

at what age can you use transphyseal bridging for distal MCIII/MTIII?

Answer 3

2.5-3 months

Question 4

transphyseal briding must be done on which side of ALD?

Answer 4

convex

medial on valgus; lateral on varus

Question 5

conservative treatment for ALD

Answer 5

hoof wall extension on CONVEX side to retard growth + float concave side

Question 6

pros and cons of single transphyseal screw

Answer 6

• faster
• more cosmetic
• less hardware = cheaper

cons:
-crosses physis

preferred for use in distal tibia/MCIII/MTIII because more complications at radius

Question 7

most active physis in horses

Answer 7

• distal MCIII

- Radius

Question 8

most common location for ALD due to dysmaturity

Answer 8

tarsus

Question 9

sickle hock

Answer 9

dysmaturity/lack of cuboidal ossification most commonly affects dorsal aspect of tarsal bones -> sickle hock

Question 10

most common cause of congenital ALD

Answer 10

peri-articular laxity