Septic Joint Flashcards
What is the most common cause of a septic joint?
Penetrating trauma
When are radiographic bone changes assoc. w/septic joint visible?
7-14d after onset
What radiographic changes will you see w/septic joints?
Thicker joint capsule, inlammed synovia
What arthrocentesis results indicate infection?
WBC >25k
TP >4.5g/dL
>80% neutrophils
What abx should you avoid when treating a septic joint?
Amikacin/gentamicin (off-label for cows)
Why do you need to lavage the joint prior to abx administration?
Remove fibrin for better abx efficacy
Why are intra-articular abx more effective than systemic abx?
Bacteria invade bone separate from blood supply
Which limb and which claw is ideal if you have to amputate?
Hind limb inside claw
What is the most used approach for digital amputation?
Distal part of P1
Where do you cut for distal P1 approach to digit amputation?
Just above PIP joint
What happens if you cut too high from the distal end of P1 when amputating the digit?
Instability of remaining digit
How long should a compressive bandage be left on a toe amputation?
At least 2 weeks
Pus into the tendon sheath
Tenosynovitis
How do you treat tenosynovitis?
Remove the tendon
What is the solar approach to the DIP?
Remove navicular bone, drill for drainage
