0:00:00.000,0:00:02.360 (English captions by Jade Cheng from the University of Michigan) 0:00:02.360,0:00:06.319 Elson's test evaluates for partial or complete[br]tear of the extensor digitorum. 0:00:06.319,0:00:11.009 Isolate the proximal interphalangeal joint[br]over the edge of the table and provide resistance 0:00:11.009,0:00:12.490 against extension. 0:00:12.490,0:00:15.710 Inability to extend at the PIP is a positive[br]test.