injuries and dz part 2 Flashcards
(33 cards)
During surgery Cows and Mares need laxative diet without roughage for 3 days prior followed by overnight starvation
Cows: no diet prep
cause: - Oversized fetus becomes impacted in a state of hiplock
Paralysis of the gluteal or obturator nerve
- Sign: dam is found to have difficulty in rising and when she walks with ‘weakness of the hindlimbs’
gluteal paralysis
gluteal paralysis eventually leads to __
atrophy of gluteal muscles
obturator paralysis is more frequent in
cows than mares
supplies the adductor muscles of the thigh; thus when both nerves are damaged the legs will be splayed and the cow is unable to rise
obturator n.
More frequent cause: faulty obstet technique but may also occur spontaneously
RUPTURE OF THE UTERUS OR VAGINA
all of the ff are - immediate causes of uterine rupture except:
o Insufficient uterine space for the extension of a limb or head,
o inordinate traction on a wrongly disposed or oversized fetus
o excessively vigorous retropulsion
o mummified fetus among the abdominal viscera
last
- may follow a rupture in the floor of the vagina or eversion through the dilated uretha
PROLAPSE OF THE BLADDER
prevents microturition
urethral kink
eversion of the bladder is more common in
mare than cows
eversion of bladder occurs in what stage
2nd
everted bladder is pear-shaped and attached to the pelvic floor
vaginal floor
- sequel to a rupture of the vagina, often a small one
PROLAPSE OF PERIVAGINAL FAT
- common accompaniment of powerful expulsive effort
PROLAPSE OF THE RECTUM
T.F prolapse of rectum may prove fatal because stretching or tearing of the colic mesentery can result in infarction of the terminal colon
t
- troublesome complication of puerperal metritis
puerperal laminitis
o sequel to retention of placenta
o 2-4 days after foaling
in mares
puerperal laminitis
is the chief cause of recumbency in parturient and puerperal cows
hypocalcemia
usually follows dystocia and is often accompanied by retention of the afterbirth
puerperal metritis
sign of true hypocalcemia
lack of letdown stimulus
t.f - Agalactia in sows is not a specific syndrome but a symptom
t
Locomotor lesions that may occur during labour and cause recumbency include
o dislocations of the hip and of the sacroiliac joints,
o fracture of the pelvis, femur or vertebral column,
o rupture of the gastrocnemius muscle
o paralysis of the obturator or gluteal nerve
t
regional absence of peripheral sensation including paraplegia assoc with vertebral fracture
nerve paralysis
