hernias Flashcards
protrusion of a tissue or organ through a defect in the wall of an anatomical cavity
hernia
T/F
traumatic hernias are initially false hernias
true
what is the difference between a false and a true hernia
a true hernia has an anatomical hernial sac
when the blood supply is compromised and leads to ischemia and potentially necrosis
strangulation
T/F
acute hernias are more likely to have loss of domain
false - chronic – especially diaphragmatic
when in a hernia, the normal location is too small to accommodate the reduced contents
compartment syndrome
4 principles of herniorrhaphy
return contents to normal location
secure rind closure
tension free closure
utilize patient tissues
open herniorrhaphy
the sac is incised and removed
T/F
removing the hernial ring by freshening is needed when performing an open herniorrhaphy
false - avoid this
close herniorrhaphy
invert the sac and contents without opening the hernial sac
umbilical hernias must be differentiated from
cranial abdominal hernia
umbilical hernia may close spontaneously up to..
6 months
this is the failure of fusion of the rectus abdominis muscle at umbilicus
umbilical hernia
what breeds are predisposed to umbilical hernias
airedale pekingese basenji pointers weimaraner
congenital inguinal hernia signalment
males < 2
dachshunds and cockers
acquired inguinal hernias signalment
middle aged intact females
inguinal hernia that occurs through inguinal musculature
direct
inguinal hernia that occurs through vaginal ring
indirect – scrotal hernia
surgical approach of inguinal hernias in males and in females
males - inguinal approach directly over the hernia
females - ventral midline can correct both sides
list 2 major complications of inguinal hernia repair
seroma and hematoma
rare condition in dogs <2 who have weakness of vaginal ring orifice
scrotal hernia – usually unilateral
T/F
cryptorchids have an increased risk of scrotal hernias
true
hernia associated with blunt traumas like HBC
traumatic abdominal hernias
stabilize patient first !
how should the patient be positioned for pelvic fracture
Dorsal recumbency with hindlegs in frog leg position with pelvis raised on towels or sand bags
hernia that occurs within 7 days of surgery
acute incisional
hernia that occurs anywhere from weeks to years after incision
chronic
possible organs that may herniate in perineal hernias
prostate
bladder
intestine
weakness and separation of the pelvic diaphragm components that allows dilation and rectal deviation
perineal hernia
most common type of perinal hernia
caudal –
levator ani
external anal sphincter
internal obturator
peak incidence of perineal hernias
7-9 years
there are more ___ receptors in perineal hernias
relaxin
percent of perinal hernia cases with bladder retroflexion
20-30%
can lead to urethral obstruction
most common perineal hernia surgery
internal obturator muscle transposition