PSL Pimp Questions Flashcards
what is the sphincter of oddi?
- The sphincter of Oddi is a muscular valve that controls the flow of digestive juices (bile and pancreatic juice) through ducts from the liver and pancreas into the first part of the small intestine (duodenum).
- Sphincter of Oddi dysfunction (SOD) describes the situation when the sphincter does not relax at the appropriate time (due to scarring or spasm). The back-up of juices causes episodes of severe abdominal pain
which portion of the navicular is avascular?
middle 1/3
What is the classification for navicular body fractures?
Sangeorzan 1989
- I = transverse fx
- II = dorsal-lateral to plantar-medial fracture, medial displacement (most common)
- III = comminuted, lateral displacement
classification system for navicular fractures
Watson and Jones
- I = tuberosity
- II = dorsal lip (most common)
- III = body
- A - w/o displacement
- B w/ displacement
- IV = stress fx
Describe gustillo-anderson classification and the risks of infection? Antibiotics recommendations?
- I - less than 1 cm clean [0-2%]
- II - greater than 1 cm, extensive soft tissue damage [2-7%]
-
III - greater than 5 cm wound
- IIIA - adequate soft tissue [7%]
- IIIB - periosteal stripping [50%]
- IIIC - arterial injury requiring repair [25-50% infxn, 50% amputation risk]
- I = 1st gen cephalosporin 24 h; II + = 1st gen cephalosporin and gentamicin 24 -48 h, III 48-72 h
What is a christman-snook?
- for lateral ankle instability
- first described in 1969
- Reconstructs the anterior talofibular ligament and the calcaneofibular ligament using one-half of the peroneus brevis tendon, routed through tunnels in the fibula and calcaneus
What is the watson jones procedure?
- for lateral ankle instability
- combined tenodesis, ligament reconstruction of ATF using the peroneus brevis tendon
what is the name of the procedure which uses hamstring for lateral ankle reconstruction?
elmslie
fibrocartilage vs. hyaline cartilage
type I - hyaline cartilage
type II = fibrocartilage
Different neuroma names?
Medial hallux - Joplin
1st interspace - Heuter
2nd interspace - Hauser
3rd interspace - Morton
4th interspace - Iselin
pathology findings neuroma
perineural fibrosis
who first described neuroma?
lewis durlacher (chiropodist to Queen of England)
In general, for how long should you have some form of DVT prophylaxis?
until the patient is able to WB again
least reactive suture
stainless steel
suture to use in infection
prolene
