Figure 2 A line drawing of a technique that can be used to compress the effusion from three sides to increase the chance of obtaining fluid from a difficult knee

1
Figure 2 A line drawing of a technique that can
be used to compress the effusion from three sides
to increase the chance of obtaining fluid from a
difficult knee
Permission from Roberts WN et al. (1996) Am J
Med 100 461464
Roberts WN (2007) Primer pitfalls of aspiration
and injection Nat Clin Pract Rheumatol 3 464472
doi10.1038/ncprheum0558