SOFT TISSUE SX 10 Flashcards
what is a hernia?
Protrusion of a structure through a defect in the wall of its normal anatomical cavity
not too serious. look casually
whats the differenc e between reducible and non-reducible hernia contents?
reducible: can easily be poked back into abdominal hole/wall
non-reducible: cannot. can be due to compression, swollen organs, etc
most common cause of external abdominal hernias?
traumatic
prepubic hernias are avulsion of which tendon?
-often caused by what?
-cranial pubic (prepubic) tendon
-RTA/pelvic fractures
what is the difference between an inguinal hernia & umbilical hernia?
-fetal umbilical ring fails to close
vs
-herniation through inguinal canal
how does neutering affect inguinal hernias?
describe the surgery for closure of an umbilical hernia
-direct incision over the hernia
-poke contents back in
-suture closed: rectus sheath is main strength holding layer of abdomen
whats fermoral hernia?
-through the femoral canal
whats a perineal hernia?
which muscles are weakened?
-rectum, prostate,bladder etc passes though
-due to weakened “pelvic diaphragm” muscles, specifically coccigeneous and levator ani muscle degeneration
in a perianal hernia, the rectum tends to dialate and devate. when doing a rectal exam, would your finger deviate towards the hernia or away form the hernia?
toward the hernia
when does a perianal hernia become an emergency?
why?
-when the bladder is in the hernia
can lead to inability to urinate: hyperkalaemia n hyperphosphataemia
how to repair a perianal hernia?
internal obturator muscle transposition flap
what are potential surgical complications to a perianal hernia?
-sciatic nerve paralysis
-recurrence:[simple appositional closure rather than muscle flap has a 50% recurrence rate…we dont do that anymore]
-contamination due to proximity to fecal matter
-fecal incontinence
