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