Equine Hindlimb Conditions *Come Back If Time*

Question 1

Which limbs is OCD most common in?

Answer 1

Hindlimbs
Tarsus and stifle

Question 2

Hindlimb lameness is associated with ______.

Answer 2

Back pain

Question 3

Which horses more commonly get proximal suspensory injury?

Answer 3

Jumping, dressage, and western performance horses

Question 4

What are the clinical signs of proximal suspensory injury?

Answer 4

Grade 2-4/5 lameness
Pain on palpation
“Compartment syndrome”

Question 5

What are the 5 joints of the tarsus? Where are they located? Which communicate?

Answer 5

Question 6

What are the (3) most common locations of OCD of the tarsus?

Answer 6

Distal intermediate ridge of the tibia (DIRT)
Lateral trochlear ridge of the talus
Medial malleolus

Question 7

Answer 7

OCD of the tarsus

Question 8

What is the treatment for tarsus OCD?

Answer 8

Arthroscopic debridement

Question 9

“Bone Spavin”

Answer 9

OA of the tarsometatarsal and distal intertarsal joints

Question 10

What are the causes of bone spavin?

Answer 10

OA of the tarsometatarsal and distal intertarsal joints
Repetitive trauma, poor conformation, incomplete ossification of cuboidal (tarsal) bones

Question 11

Answer 11

Bone Spavin - OA of the tarsometatarsal and distal intertarsal joints
Arrow: subchondral sclerosis and lysis

Question 12

Answer 12

Bone Spavin - OA of the tarsometatarsal and distal intertarsal joints
Incomplete ossification

Question 13

Developmental OCD

Answer 13

Failure of endochondral ossification
Lateral trochlear ridge most common site

Question 14

How is developmental OCD diagnosed?

Answer 14

Moderate-severe effusion
Usually low grade lameness
Radiography

Question 15

How is developmental OCD treated?

Answer 15

Surgical (arthroscopic) debridement
Cartilage absorbable pin fixation

Question 16

Answer 16

Developmental OCD