Lecture 28 - Pelvic Limb 5

Question 1

What are the comparative differences in the fibula for horses, pigs, and ruminants

Answer 1

horses have great variation as it is vestigial
pigs have a complete separate fibula
ruminants have a distal fibula that forms separate lateral malleolus

Question 2

list the crus muscle groups craniolaterally

Answer 2

cranial tibial m.
fibularis tertius
fibularis longus
soleus
long digital extensor
lateral digital extensor

Question 3

the cunean tendon belongs to which muscle

Answer 3

fibularis tertius

Question 4

describe the reciprocal apparatus

Answer 4

SDFT and fibularis tertius
moves with stifle

Question 4

what does a “stringhalt” gait look like?

Answer 4

exaggerated upward flexion of pelvic limb

Question 5

what is the anatomy of the stringhalt surgical procedure?

Answer 5

lateral digital extensor myotenectomy via two incisions above and below the hock

Question 6

differentiate and name tarsal joints

Answer 6

tarsocrural
proximal intertarsal
distal intertarsal
tarsometatarsal

Question 6

what is the physical examination finding of a fibularis tertius rupture?

Answer 6

hock extended while stifle is flexed

Question 7

where is a common site for OCD in the tarsus?

Answer 7

distal intermediate ridge of the tibia (DIRT)

Question 8

what joints does bone spavin commonly affect?

Answer 8

intertarsal and tarsometatarsal joints

Question 9

differentiate and name the tarsal synovial sacs and pouches

Answer 9

Synovial sac: Tarsocrural, proximal intertarsal, distal intertarsal, tarsometatarsal

Pouches: dorsolateral, dorsomedial, plantarolateral, plantaromedial

Question 10

which joints of the tarsus communicate?

Answer 10

free communication of all pouches

tarsocrural and PITJ - ox and horse
TMTJ and DITJ - free communication

Question 11

local anesthetic injected into one joint sac may go to what other joint sac (if any)

Answer 11

tarsocrural to PITJ
TMTJ to DITJ

Question 12

what joint does bog spavin occur in

Answer 12

tarsocrural joint

Question 13

describe the needle insertion landmark needed to perform an injection into the tarsometatarsal joint

Answer 13

head of MT4

Question 14

why are the dorsomedial and plantarolateral tarsocrural joint pouches commonly used for injection sites

Answer 14

they are easily accessed and communicate freely with all pouches

Question 15

the fibularis longus m. is absent in this species

Answer 15

horse

Question 16

this species has one patella ligament

Answer 16

pig

Question 17

the fibularis tertius is part of the

Answer 17

reciprocal apparatus

Question 18

stringhalt involves abnormal function of this muscle

Answer 18

lateral digital extensor m.

Question 19

the cunean tendon is the dorsomedial insertion of this muscle

Answer 19

cranial tibial

Question 20

the patella locks over this trochlear ridge of the femur

Answer 20

medial

Question 21

the meniscofemoral ligament connects this meniscus to the femur

Answer 21

lateral

Question 22

why may the fibular be incorrectly classified as fractured on radiographs

Answer 22

proximal part is not ossified

Question 23

what is the action of the craniolateral crus muscles

Answer 23

flex tarsus and extend digits

Question 24

T/F: there is a union of the lateral digital extensor and long digital extensor in the mid-crus

Answer 24

TRUE

Question 25

list the crus muscle groups caudally

Answer 25

popliteus
SDFT
DDFT
gastrocnemius

Question 26

the cunean bursa sits between what two structures

Answer 26

cunean tendon and medial collateral ligament

Question 27

what is the action of the caudal crus muscles

Answer 27

extend tarsus and flex digits

Question 28

what is a species difference in the tarsus of swine

Answer 28

4 metatarsals
no fused tarsal bones

Question 29

what is a species difference in the tarsus of bovine

Answer 29

fused III and IV metatarsals
fused central + IV and II + III tarsals

Question 30

what is a species difference in the tarsus of equine

Answer 30

3rd metatarsal (splint bones II and IV)
fused I + II tarsals