Functional Pelvis

Question 1

Know the location of the peak vertical force in the equine back when movement at the LS junction and the coxofemoral joint are taken into account

Answer 1

Lumbosacral junction

Question 2

Know the clinical signs of SI joint dysfunction (11)

Answer 2

1. Poor performance
2. Unwillingness to engage the hindquarters
3. Kicking
4. Bucking under saddle especially at canter
5. Offers canter instead of trot on the lounge line
6. Four beat canter
7. Changing leads behind
8. Uneven gait in lateral work
9. Reluctance to change leads
10. Reluctant to engage hindlimb and also to fully extend the hindlimb
11. Carries hindquarters to the inside on the lounge line

Question 3

Know the signs of SI joint dysfunction found on physical exam (6)

Answer 3

1. Atrophy of the gluteals muscles
2. Atrophy just lateral to the tuber sacrale
3. Pain on ventral pressure over the SI joint
4. Dragging toes behind
5. Hindlimbs have a short cranial and caudal phase of stride
6. Back held stiffly and is not involved in the movement

Question 4

Know the likely explanation for the muscle atrophy seen with SI joint problems

Answer 4

SI dysfunction affecting the lower motor neurons to the gluteal muscles

Question 5

Know the most common complaint from the owner of a horse with sciatic pain or dysfunction and why this sign is seen. What two other signs are seen?

Answer 5

“Drops out behind”
Extensor weakness
Kicking at stall with one hind leg (pain worse with rest)(Qi def)

Question 6

Know that distal limb pain that is unresponsive to treatment may be _______

Answer 6

sciatic neuralgia.

Question 7

Which lateral bend is inhibited with a right PI ilium?

Answer 7

Left

Question 8

Know how a pelvic or sacral restriction can affect the psoas muscle

Answer 8

Pelvic AS

Question 9

How does a pelvic or sacral restriction affect the sacrosciatic ligament and how can you treat the ligament?

Answer 9

Affects structures in the greater and lesser sciatic foramina and associated muscles

Question 10

Describe Logan basic procedure

Answer 10

Pressure where tail meets the body, gentle pressure on caudal edge of sacrosciatic ligament to release tension