Septic Synovitis Flashcards
what is normal total protein in synovial fluid?
<2.0 g/dl
what in nucleated cells in synovial fluid would indicate sepsis?
> 90% neutrophils
what is the prognosis of septic synovitis of the joint?
up to 85% returned to work
what vital structures can be compromised by a penetrating wound?
navicular bursa
coffin joint
digital tendon sheath
DDFT
coffin bone
navicular bone
what diagnostics can be done for septic synovitis?
arthrocentesis
distend joint with saline
radiographs
ultrasound
what is normal and septic total nucleated cell count in synovial fluid?
normal <500 cells/ul
septic >30,000 cells/ul
what percentage of synovial fluid cultures from truly infected joints will be positive?
60-75%
what are injection related infections like in terms of bacteriology?
coagulase positive Staph (S. aureus)
rarely polymicrobial
how long are systemic antibiotics usually administered for septic synovitis?
10-14 days
should you apply intra-articular anti-inflammatories for septic synovitis?
no- avoid for several months
what percentage of horses with tenosynovitis returned to work?
57-70%
is a street nail potentially life-threatening?
yes
what is a streetnail procedure like?
limited visualization of the bursa or joint
large defect created on the sole
what is the treatment of choice for a penetrating wound to thee hoof?
endoscopic lavage and debridement- navicular bursoscopy
when is conservative treatment of a penetrating wound to the hoof an option?
only for injuries sparing the joint/bursa/tendon sheath
what is the prognosis of a street nail if synovial structures are compromised?
endoscopic debridement: 60% return to athletic work
street nail procedure: 40%
what are the options for local antibiotic therapy?
regional limb perfusion
intra-articular infusion
intra-osseous perfusion
antibiotic infusion systems
antibiotic impregnated implants
what is regional limb perfusion excellent for?
septic synovitis
cellulitis
wounds
what are the negatives of regional limb perfusion?
concentration dependent vs time dependent antibiotics
vessel thrombosis and perivascular swelling
time/safety
what antibiotics are used in regional limb perfusion?
gentamicin
amikacin
naxcel
baytril
imipenem
cefotaxime
ceftazidime
vancomycin
