visual aid: knee arthrocentesis

20 Jan

if you’re looking for a 60-second refresher on how to tap a knee, here are some handy pictures and video references:

knee1

 

if you only have 30-seconds, tune in at the 2:40 mark for some landmark refreshers.

 

HANDY TRICK (from a recent ALiEM post):

  • use one of your usual IV needles, then you can leave in the angiocath (plastic only) and remove the needle, for improved comfort/safety, especially if changing out syringes.

 

 

if you want to see a tap using a 6-inch spinal needle, check out this video 

  • 2-second takeaway: with enough swelling, sometimes the joint space can be quite far from the skin surface

knee2needle

 

References: NEJM procedure video; mellick video; ALiEM post

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