Pelvic Limb Disorders

Question 1

What are the defining features of iliopsoas strain?

Answer 1

Decreased flexibility of iliopsoas (hip extension with IR)
Pain with palpation
Usually has defined MOI
Common in sporting dogs

Question 2

What are the common defining features of fibrotic myopathy?

Answer 2

1. Usually gracilis and/or semiten
2. GSD or Belgian Shepherds, ~ 5 years of age, Probably male
3. Insidious onset
4. Shortened stride; rapid IR of paw

Question 3

How does the dog present if there is a partial Achilles rupture and SDF is intact?

Answer 3

Stifle extension, hock flexion, digits FLEXED

Question 4

How does the dog present with a complete Achilles injury?

Answer 4

Hock will drop to the floor

Question 5

What is the common presentation for gait changes with hip dysplasia?

Answer 5

Waddle
Bunny hopping
Possible U or B lameness
Circumduction
Stiff legs

Question 6

What are the differences between the PennHIP and the OFA?

Answer 6

1. PennHIP can be done at 16 weeks, and OFA 2 years
2. PennHIP requires sedation
3. PennHIP is quantitative and OFA is qualitative

Question 7

Describe the grades of patellar luxation.

Answer 7

1. Starts in the groove and stays in the groove
2. Starts in the groove, but you can push it out. It will go back in.
3. It is out. You can push it back in, but it wants to go out
4. It is out and will not go back in at all.

Question 8

What are the passive stabilizers of the stifle?

Answer 8

CCL, meniscus, collateral ligaments

Question 9

What are the active stabilizers of the stifle?

Answer 9

Quads, Hams, Gastroc

Question 10

Describe the direction of the Cranial Cruciate Ligament? What motion does it restrict?

Answer 10

Goes caudolateral to craniomedial
Limits tibial thrust, prevents hyperextension and excessive IR

Question 10

Describe the direction of the Caudal Cruciate Ligament? What motion does it restrict?

Answer 10

Goes craniomedial to caudolateral

Question 10

Why is the medial mensicus more likely to be injured?

Answer 10

The lateral mensicus has stability from the meniscofemoral ligament

Question 10

If we have + drawer in extension, this means…

Answer 10

there is a complete tear since BOTH bands of CCL should be taut in extension

Question 10

What are the two bands of the CCL and when are they under tension (stifle position)?

Answer 10

Craniomedial - taut in flexion and extension
Caudolateral - taut in extension only

Question 11

What is a normal tibial plateau angle?

Answer 11

25 degrees; excessive is 35

Question 12

What are the common extracapsular surgeries for CCLR?

Answer 12

Traditional suture - nylon suture behind fabella
Tightrope

Question 13

What is a TPLO?

Answer 13

Tibial Plateau Leveling Osteotomy; eliminates craniotibial thrust but NOT cranial drawer

Question 14

What is a TTA?

Answer 14

Tibial Tuberosity Advancement; counteracts cranial tibial subluxation